Standard Lemma guide

crazy

adj · adv · noun · 16 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • krāzē
  • General-American, Received-Pronunciation: /ˈkɹeɪ.zi/
  • Australian: /ˈkɹæɪ.zi/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -eɪzi
  • CMU ARPABET: K R EY1 Z IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Of unsound mind; insane; demented.

Definition source: English Wiktionary via Wiktextract

Examples

  • His ideas were both frightening and crazy.

Meaning relationships

Synonyms: 5150, bananas, barking, barking mad, buggish, buggy, bughouse, barmy, batchy, batpoop, bats, batty, bonkers, bread baskets, cracked, crackers, cra-cra, cray, cray-cray, crazed, crazy, crazy as a bedbug, crazy as a cootie, crazy as a cootie bug, crazy as a pet coon, cuckoo, daffy, daft, demented, deranged, distraught, disturbed, doolally, dotty, eccentric, fruit loops, gaga, hatstand, harebrained, insane, kooky, loon, loco, loony, loony tunes, loopy, lunatic, mad, mental, mentally ill, meshigener, meshugge, moonsick, nerts, non compos mentis, nonsane, nucking futs, nut job, nutballs, nut, nuts, nutso, nutty, nutter, off the beam, off the chain, over the edge, potty, psycho, psychoceramic, psychotic, sicko, screwy, squirrelly, starkers, tonto, unbalanced, unsane, wackadoodle, weird, whackjob, whacko, whacky, wode, yampy, zany, apeshit, batcrap, batshit, bat-shit, fucked in the head, fucked up, ripshit

Antonyms: none provided

2

adj

Meaning 2

Out of control.

Definition source: English Wiktionary via Wiktextract

Examples

  • When she gets on the motorcycle she goes crazy.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Very excited or enthusiastic.

Definition source: English Wiktionary via Wiktextract

Examples

  • He went crazy when he won.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

In love; experiencing romantic feelings.

Definition source: English Wiktionary via Wiktextract

Examples

  • Why is she so crazy about him?

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adj

Meaning 5

Very unexpected; wildly surprising.

Definition source: English Wiktionary via Wiktextract

Usage: informal

Examples

  • crazy work
  • The game had a crazy ending.

Meaning relationships

Synonyms: amazing

Antonyms: none provided

6

adj

Meaning 6

Flawed or damaged; unsound, liable to break apart; ramshackle.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

adj

Meaning 7

Sickly, frail; diseased.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

adv

Meaning 8

Very, extremely.

Definition source: English Wiktionary via Wiktextract

Usage: slang

Examples

  • That trick was crazy good.
  • I'm crazy tired after today's shift at work.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

An insane or eccentric person; a crackpot.

Definition source: English Wiktionary via Wiktextract

Usage: countable, slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: basket case, basket weaver, crack, crackpot, crazy, crazyhead, dingbat, eccentric, fruit and nut case, fruit cake, fruit loop, fruitloop, head case, kook, loony, loony tune, lunatic, madcap, madhead, mental case, nut, nut ball, nutbar, nutburger, nutcase, nutjob, nutter, psycho, psychoceramic, schizo, screwball, space cadet, space pilot, unconventional, wackadoo, wackadoodle, wacko, whackjob, whacko, weirdo, wingnut, space case

Antonyms: none provided

10

noun

Meaning 10

Eccentric behaviour; lunacy; craziness.

Definition source: English Wiktionary via Wiktextract

Usage: slang, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

adjective satellite

Meaning 11

intensely enthusiastic about or preoccupied with

Definition source: Princeton WordNet 3.0

Examples

  • crazy about cars and racing
  • he is potty about her

Meaning relationships

Synonyms: wild, dotty, gaga

Antonyms: none provided

12

adjective satellite

Meaning 12

possessed by inordinate excitement

Definition source: Princeton WordNet 3.0

Examples

  • the crowd went crazy
  • was crazy to try his new bicycle

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

adjective satellite

Meaning 13

bizarre or fantastic

Definition source: Princeton WordNet 3.0

Examples

  • had a crazy dream
  • wore a crazy hat

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

adjective satellite

Meaning 14

foolish; totally unsound

Definition source: Princeton WordNet 3.0

Examples

  • a crazy scheme
  • half-baked ideas
  • a screwball proposal without a prayer of working

Meaning relationships

Synonyms: half-baked, screwball, softheaded

Antonyms: none provided

15

adjective satellite

Meaning 15

affected with madness or insanity

Definition source: Princeton WordNet 3.0

Examples

  • a man who had gone mad

Meaning relationships

Synonyms: brainsick, demented, disturbed, mad, sick, unbalanced, unhinged

Antonyms: none provided

16

noun

Meaning 16

someone deranged and possibly dangerous

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: loony, looney, nutcase, weirdo

Antonyms: none provided

Broader terms: lunatic, madman, maniac

History

Etymology

From craze (“to crush”) + -y, akin to being "crazed up". Compare cracked up (“suffered a mental breakdown; be insane”), crackpot. Compare typologically Russian чо́кнутый (čóknutyj).

Across languages

Translations

354 source translations are retained for this English entry.

  • Albanian: i çmendur — insane, demented
  • Amharic: እብድ (ʾəbd) — insane, demented
  • Arabic: مَجْنُون (majnūn) — insane, demented
  • Arabic: مَخْبُول (maḵbūl) — insane, demented
  • Arabic: مَسْعُور (masʕūr) — insane, demented
  • Arabic: أَحْمَق (ʔaḥmaq) — insane, demented
  • Chadian Arabic: مشوطن (mušōtin) — insane, demented
  • Arabic: حمق (ḥmaq) — insane, demented
  • Arabic: مسطي (msaṭṭi) — insane, demented
  • Arabic: هبيل (hbīl) — insane, demented
  • Armenian: խենթ (xentʻ) — insane, demented
  • Armenian: խելագար (xelagar) — insane, demented
  • Armenian: գիժ (giž) — insane, demented
  • Asturian: llocu — insane, demented
  • Azerbaijani: dəli — insane, demented
  • Basque: zoro — insane, demented
  • Basque: ero — insane, demented
  • Belarusian: шалёны (šaljóny) — insane, demented
  • Belarusian: бязу́мны (bjazúmny) — insane, demented
  • Bengali: দেওয়ানা (deōẇana) — insane, demented
  • Bengali: পাগল (pagol) — insane, demented
  • Bengali: মজনু (mojonu) — insane, demented
  • Cebuano: buang — insane, demented
  • Bulgarian: луд (lud) — insane, demented
  • Bulgarian: побъ́ркан (pobǎ́rkan) — insane, demented
  • Burmese: နှမ်း (hnam:) — insane, demented
  • Catalan: boig — insane, demented
  • Catalan: foll — insane, demented
  • Catalan: sonat — insane, demented
  • Catalan: tocat de l'ala — insane, demented
  • Catalan: tocat del bolet — insane, demented
  • Catalan: xalat — insane, demented
  • Catalan: tronat — insane, demented
  • Chickasaw: haksi — insane, demented
  • Chinese Cantonese: 癡線 /痴线 (ci1 sin3) — insane, demented
  • Chinese Cantonese: 癲 /癫 (din1) — insane, demented
  • Chinese Mandarin: 瘋狂 /疯狂 (fēngkuáng) — insane, demented
  • Chinese Mandarin: 瘋 /疯 (fēng) — insane, demented
  • Czech: šílený — insane, demented
  • Czech: pominutý — insane, demented
  • Czech: trhlý — insane, demented
  • Czech: potrhlý — insane, demented
  • Czech: zbavený rozumu — insane, demented
  • Czech: ztřeštěný — insane, demented
  • Czech: bláznivý — insane, demented
  • Danish: skør — insane, demented
  • Danish: sindssyg — insane, demented
  • Danish: sindsforvirret — insane, demented
  • Danish: gal — insane, demented
  • Danish: gakgak — insane, demented
  • Dutch: zot — insane, demented
  • Dutch: gek — insane, demented
  • Dutch: getikt — insane, demented
  • Dutch: gestoord — insane, demented
  • Dutch: krankjorum — insane, demented
  • Dutch: geschift — insane, demented
  • Esperanto: freneza — insane, demented
  • Estonian: hull — insane, demented
  • Finnish: hullu — insane, demented
  • Finnish: mieletön — insane, demented
  • Finnish: järjetön — insane, demented
  • Finnish: kaheli — insane, demented
  • French: fou — insane, demented
  • French: insensé — insane, demented
  • French: avoir une araignée au plafond — insane, demented
  • French: chtarbé — insane, demented
  • French: dérangé — insane, demented
  • French: dingo — insane, demented
  • French: taré — insane, demented
  • Galician: tolo — insane, demented
  • Galician: doudo — insane, demented
  • Galician: louco — insane, demented
  • Georgian: შეშლილი (šešlili) — insane, demented
  • Georgian: გადარეული (gadareuli) — insane, demented
  • Georgian: გიჟი (giži) — insane, demented
  • Georgian: არანორმალური (aranormaluri) — insane, demented
  • Georgian: შეურაცხადი (šeuracxadi) — insane, demented
  • German: verrückt — insane, demented
  • Greek: τρελός (trelós) — insane, demented
  • Ancient Greek: μανιώδης (maniṓdēs) — insane, demented
  • Hawaiian: pupule — insane, demented
  • Hebrew: מְטוֹרָף (metoráf) — insane, demented
  • Hebrew: מְשׁוּגָע (meshugá) — insane, demented
  • Higaonon: buang — insane, demented
  • Hindi: पागल (pāgal) — insane, demented
  • Hindi: दीवाना (dīvānā) — insane, demented
  • Hungarian: bolond — insane, demented
  • Hungarian: őrült — insane, demented
  • Hungarian: kattant — insane, demented
  • Icelandic: brjálaður — insane, demented
  • Ilocano: bagtit — insane, demented
  • Ilocano: balla — insane, demented
  • Ilocano: antutit — insane, demented
  • Ilocano: ambagel — insane, demented
  • Ilocano: agmuyot — insane, demented
  • Ilocano: ammangaw — insane, demented
  • Ilocano: kuwatit — insane, demented
  • Ilocano: mauyong — insane, demented
  • Ilocano: alloy — insane, demented
  • Ilocano: attit — insane, demented
  • Ilocano: talpeng — insane, demented
  • Ilocano: appat — insane, demented
  • Ilocano: allot — insane, demented
  • Ilocano: tiwel — insane, demented
  • Ilocano: alintaweng — insane, demented
  • Ilocano: ambreng — insane, demented
  • Ilocano: ullog — insane, demented
  • Ilocano: murtit — insane, demented
  • Ilocano: ketit — insane, demented
  • Ilocano: bultik — insane, demented
  • Indonesian: gila — insane, demented
  • Ingrian: hullu — insane, demented
  • Irish: seafóideach — insane, demented
  • Italian: pazzo — insane, demented
  • Italian: matto — insane, demented
  • Italian: folle — insane, demented
  • Japanese: 気が狂った (ki ga kurutta) — insane, demented
  • Japanese: 頭がおかしい (atama ga okashii) — insane, demented
  • Kapampangan: murit — insane, demented
  • Kapampangan: moret — insane, demented
  • Kazakh: ақылсыз (aqylsyz) — insane, demented
  • Kazakh: есалаң (esalañ) — insane, demented
  • Khmer: ឆ្កួត (chkuət) — insane, demented
  • Khmer: លលាតែ (lĕəʼliə tae) — insane, demented
  • Khmer: ឧម្មត្តកៈ (ʼummattaʼkaʼ) — insane, demented
  • Korean: 미치다 (michida) — insane, demented
  • Northern Kurdish: dîn — insane, demented
  • Northern Kurdish: bêhiş — insane, demented
  • Kyrgyz: жинди (jindi) — insane, demented
  • Ladino: loko — insane, demented
  • Ladino: budala — insane, demented
  • Latgalian: troks — insane, demented
  • Latin: dēlīrus — insane, demented
  • Latin: vēcors — insane, demented
  • Latin: īnsānus — insane, demented
  • Latvian: traks — insane, demented
  • Latvian: ārprātīgs — insane, demented
  • Latvian: vājprātīgs — insane, demented
  • Leonese: llocu — insane, demented
  • Lithuanian: pamišęs — insane, demented
  • Louisiana Creole: fou — insane, demented
  • Louisiana Creole: fòl — insane, demented
  • Louisiana Creole: pa tou la — insane, demented
  • Louisiana Creole: takala — insane, demented
  • Macedonian: луд (lud) — insane, demented
  • Malagasy: adala — insane, demented
  • Malay: gila — insane, demented
  • Maltese: miġnun — insane, demented
  • Māori: pōrewharewha — insane, demented
  • Māori: heahea — insane, demented
  • Māori: rorirori — insane, demented
  • Māori: wairangi — insane, demented
  • Māori: pōrangi — insane, demented
  • Māori: pōrewarewa — insane, demented
  • Mongolian: солиотой (soliotoj) — insane, demented
  • Mongolian: галзуу (galzuu) — insane, demented
  • Norwegian Bokmål: galen — insane, demented
  • Norwegian Bokmål: gal — insane, demented
  • Norwegian Bokmål: gæren — insane, demented
  • Norwegian Bokmål: sinnsyk — insane, demented
  • Occitan: baug — insane, demented
  • Occitan: fòl — insane, demented
  • Pannonian Rusyn: шалєни (šaljeni) — insane, demented
  • Pannonian Rusyn: хибни (xibni) — insane, demented
  • Pannonian Rusyn: блазни (blazni) — insane, demented
  • Pannonian Rusyn: дурни (durni) — insane, demented
  • Pashto: لېونی (lewanay) — insane, demented
  • Pashto: مجنون (majnǔn) — insane, demented
  • Persian: دیوانه (divâne) — insane, demented
  • Persian: مجنون (majnun) — insane, demented
  • Plautdietsch: domm — insane, demented
  • Plautdietsch: errsennich — insane, demented
  • Polish: szalony — insane, demented
  • Polish: obłąkany — insane, demented
  • Portuguese: louco — insane, demented
  • Portuguese: maluco — insane, demented
  • Portuguese: doido — insane, demented
  • Romanian: nebun — insane, demented
  • Romanian: înnebunit — insane, demented
  • Romanian: tulburat — insane, demented
  • Russian: сумасше́дший (sumasšédšij) — insane, demented
  • Russian: безу́мный (bezúmnyj) — insane, demented
  • Russian: умалишённый (umališónnyj) — insane, demented
  • Russian: поме́шанный (poméšannyj) — insane, demented
  • Russian: чо́кнутый (čóknutyj) — insane, demented
  • Russian: спя́тивший (spjátivšij) — insane, demented
  • Russian: неадеква́тный (neadɛkvátnyj) — insane, demented
  • Russian: ошале́вший (ošalévšij) — insane, demented
  • Russian: ненорма́льный (nenormálʹnyj) — insane, demented
  • Scottish Gaelic: craicte — insane, demented
  • Scottish Gaelic: às a chiall — insane, demented
  • Serbo-Croatian: лу̑д — insane, demented
  • Serbo-Croatian: бѐзӯман — insane, demented
  • Serbo-Croatian: lȗd — insane, demented
  • Serbo-Croatian: bèzūman — insane, demented
  • Slovak: bláznivý — insane, demented
  • Slovak: šialený — insane, demented
  • Slovene: nor — insane, demented
  • Slovene: blazen — insane, demented
  • Somali: xuuf — insane, demented
  • Spanish: loco — insane, demented
  • Spanish: colgado — insane, demented
  • Spanish: sonado — insane, demented
  • Spanish: trastornado — insane, demented
  • Spanish: tronado — insane, demented
  • Spanish: tocado — insane, demented
  • Spanish: gagá — insane, demented
  • Spanish: zumbado — insane, demented
  • Spanish: orate — insane, demented
  • Spanish: chalado — insane, demented
  • Spanish: tarambana — insane, demented
  • Spanish: creisi — insane, demented
  • Spanish: como una regadera — insane, demented
  • Sranan Tongo: law — insane, demented
  • Sundanese: gélo — insane, demented
  • Swedish: galen — insane, demented
  • Swedish: tok — insane, demented
  • Swedish: tokig — insane, demented
  • Swedish: sinnessjuk — insane, demented
  • Swedish: vansinnig — insane, demented
  • Swedish: från vettet — insane, demented
  • Tagalog: baliw — insane, demented
  • Tagalog: loko — insane, demented
  • Tajik: девона (devona) — insane, demented
  • Tajik: маҷнун (majnun) — insane, demented
  • Tajik: ҷиннӣ (jinni) — insane, demented
  • Tày: bả — insane, demented
  • Tày: pền bả — insane, demented
  • Thai: บ้า (bâa) — insane, demented
  • Turkish: aptal — insane, demented
  • Turkish: deli — insane, demented
  • Turkish: manyak — insane, demented
  • Turkish: kaçık — insane, demented
  • Turkish: üşütük — insane, demented
  • Ottoman Turkish: دلی (deli) — insane, demented
  • Ottoman Turkish: مجنون (mecnun) — insane, demented
  • Turkmen: däli — insane, demented
  • Ukrainian: божеві́льний (boževílʹnyj) — insane, demented
  • Ukrainian: безу́мний (bezúmnyj) — insane, demented
  • Ukrainian: шале́ний (šalényj) — insane, demented
  • Unami: kpëcheònkël — insane, demented
  • Urdu: پاگل (pāgal) — insane, demented
  • Urdu: دیوانہ (dīvānā) — insane, demented
  • Uzbek: jinni — insane, demented
  • Vietnamese: điên — insane, demented
  • Vietnamese: điên rồ — insane, demented
  • Vietnamese: cuồng — insane, demented
  • Vietnamese: khùng — insane, demented
  • Volapük: lienetik — insane, demented
  • Welsh: gwallgof — insane, demented
  • Welsh: ynfyd — insane, demented
  • Welsh: gorffwyll — insane, demented
  • Welsh: lloerig — insane, demented
  • Zhuang: bag — insane, demented
  • Catalan: boig — out of control
  • Chinese Cantonese: 癲 /癫 (din1) — out of control
  • Chinese Cantonese: 癡線 /痴线 (ci1 sin3) — out of control
  • Chinese Mandarin: 瘋 /疯 (fēng) — out of control
  • Chinese Mandarin: 瘋狂 /疯狂 (fēngkuáng) — out of control
  • Finnish: hullu — out of control
  • Finnish: villi — out of control
  • Finnish: kaheli — out of control
  • Finnish: kahjo — out of control
  • French: fou — out of control
  • Georgian: უმართავი (umartavi) — out of control
  • German: verrückt — out of control
  • Greek: τρελός (trelós) — out of control
  • Hungarian: megőrül — out of control
  • Hungarian: elmegy az esze — out of control
  • Hungarian: elborul az agya — out of control
  • Italian: impazzito — out of control
  • Italian: fuori di testa — out of control
  • Khmer: ឆ្កួត (chkuət) — out of control
  • Khmer: ឈ្លក់ (chlŭək) — out of control
  • Korean: 미치다 (michida) — out of control
  • Latvian: traks — out of control
  • Leonese: llocu — out of control
  • Mongolian: зүггүй (züggüj) — out of control
  • Pashto: لېونی (lewanay) — out of control
  • Portuguese: louco — out of control
  • Portuguese: doido — out of control
  • Romanian: nebun — out of control
  • Romanian: necontrolat — out of control
  • Russian: сумасше́дший (sumasšédšij) — out of control
  • Russian: безу́мный (bezúmnyj) — out of control
  • Scottish Gaelic: craicte — out of control
  • Scottish Gaelic: às a chiall — out of control
  • Spanish: loco — out of control
  • Spanish: desquiciado — out of control
  • Spanish: creisi — out of control
  • Swedish: ur kontroll — out of control
  • Tày: bả — out of control
  • Tày: pền bả — out of control
  • Thai: คลั่ง (klâng) — out of control
  • Turkish: çılgın — out of control
  • Vietnamese: mất kiểm soát — out of control
  • Vietnamese: điên rồ — out of control
  • Italian: fantastico — very excited
  • Italian: pazzesco — very excited
  • Italian: incredibile — very excited
  • Latvian: traks — very excited
  • Spanish: venático — very excited
  • Spanish: ideoso — very excited
  • Spanish: ideático — very excited
  • Norwegian Bokmål: sykt — very, extremely
  • Norwegian Bokmål: sinnssykt — very, extremely
  • Norwegian Bokmål: sjukt — very, extremely
  • Norwegian Bokmål: sinnssjukt — very, extremely
  • Norwegian Nynorsk: sjukt — very, extremely
  • Norwegian Nynorsk: sinnsssjukt — very, extremely
  • Russian: обалде́нно (obaldénno) — very, extremely
  • Russian: офиге́нно (ofigénno) — very, extremely
  • Swedish: sjukt — very, extremely
  • Bashkir: иҫәр (iśər) — an insane or eccentric person
  • Bashkir: диуана (diwana) — an insane or eccentric person
  • Bashkir: алйот (alyot) — an insane or eccentric person
  • Bashkir: тиле (tile) — an insane or eccentric person
  • Bashkir: йүләр (yülər) — an insane or eccentric person
  • Bashkir: тинтәк (tintək) — an insane or eccentric person
  • Bashkir: һантый (hantıy) — an insane or eccentric person
  • Bulgarian: смахнат (smahnat) — an insane or eccentric person
  • Bulgarian: побъркан (pobǎrkan) — an insane or eccentric person
  • Catalan: boig — an insane or eccentric person
  • Czech: šílenec — an insane or eccentric person
  • Czech: blázen — an insane or eccentric person
  • Finnish: hullu — an insane or eccentric person
  • Finnish: mielipuoli — an insane or eccentric person
  • French: fou — an insane or eccentric person
  • French: folle — an insane or eccentric person
  • Irish: duine buile — an insane or eccentric person
  • Irish: gealt — an insane or eccentric person
  • Khmer: ដំណើប (dɑmnaəp) — an insane or eccentric person
  • Khmer: ចំកួត (cɑmkuət) — an insane or eccentric person
  • Ngarrindjeri: wurangi — an insane or eccentric person
  • Norwegian: galning — an insane or eccentric person
  • Norwegian: gærning — an insane or eccentric person
  • Pashto: لېونی (lewanay) — an insane or eccentric person
  • Pashto: لېونۍ (lewanëy) — an insane or eccentric person
  • Polish: świr — an insane or eccentric person
  • Polish: dziwak — an insane or eccentric person
  • Polish: wariat — an insane or eccentric person
  • Portuguese: louco — an insane or eccentric person
  • Romanian: nebun — an insane or eccentric person
  • Romanian: nebună — an insane or eccentric person
  • Romanian: sonat — an insane or eccentric person
  • Romanian: sonată — an insane or eccentric person
  • Russian: сумасше́дший (sumasšédšij) — an insane or eccentric person
  • Russian: поме́шанный (poméšannyj) — an insane or eccentric person
  • Russian: псих (psix) — an insane or eccentric person
  • Russian: неадеква́т (neadekvát) — an insane or eccentric person
  • Spanish: venático — an insane or eccentric person
  • Spanish: ideoso — an insane or eccentric person
  • Turkish: manyak — an insane or eccentric person
  • Turkish: zibidi — an insane or eccentric person
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