Standard Lemma guide

ket

name · noun · 11 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.

  • /kɛt/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ɛt

1

name

Meaning 1

A river in Russia, a tributary of the Ob.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

The Yeniseian language of the Ket people.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Kettish

Antonyms: none provided

3

name

Meaning 3

The station code of Kennedy Town in Hong Kong.

Definition source: English Wiktionary via Wiktextract

Topics: rail-transport, railways, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A column vector, in Hilbert space, especially as representing the state of a quantum mechanical system; the complex conjugate transpose of a bra (a row vector); a ket vector. Symbolised by |...〉.

Definition source: English Wiktionary via Wiktextract

Qualifier: quantum mechanics

Topics: linear-algebra, mathematics, sciences

Examples

  • A particular ket, say #124;A#92;rangle, might be represented by a particular column vector. Its corresponding bra, #92;langleA#124;, would then be represented by the row vector which is the transpose conjugate of that column vector.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Carrion; any filth.

Definition source: English Wiktionary via Wiktextract

Usage: Northern-England, countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

Sweetmeats.

Definition source: English Wiktionary via Wiktextract

Usage: Northumbria, countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A sweet, treat or candy.

Definition source: English Wiktionary via Wiktextract

Usage: Wearside, countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

ketamine

Definition source: English Wiktionary via Wiktextract

Usage: colloquial, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

matted wool

Definition source: English Wiktionary via Wiktextract

Usage: Scotland, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

A member of a people of Krasnoyarsk Krai in Central Siberia, Russia.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

A native or inhabitant of Brussels.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Brusseler

Antonyms: none provided

History

Etymology

Learned borrowing from Ket кеʼт (keˀt, “human being”), via Russian.

From bra-ket notation invented by Paul Dirac, from bracket.

Probably of Old Norse origin like kjǫt (“meat”), from Proto-Germanic *ketwą. Compare Icelandic kjöt (“flesh”); akin to Swedish kött, Danish kød, and Norwegian kjøtt. The use of the term ket for "candy" or "sweets" probably derived from its use to describe sweet meats or as a deterrent to children.

Clipping of ketamine.

Borrowed from Dutch Ket, derived from Dutch ket, Middle Dutch *kitte, Proto-West Germanic *kitte.

Across languages

Translations

43 source translations are retained for this English entry.

  • Ket: Остык (Òstɨk) — people
  • Ket: Остыганам (Òstɨkanam) — people
  • Polish: Ket — people
  • Polish: Ketka — people
  • Serbo-Croatian: Ке̏т — people
  • Serbo-Croatian: Кѐтица — people
  • Serbo-Croatian: Kȅt — people
  • Serbo-Croatian: Kètica — people
  • Breton: keteg — language
  • Chinese: 愒語 /愒语 — language
  • Chinese: 愒语 (Kài yǔ) — language
  • Chuvash: кет чӗлхи (ket čĕlh̬i) — language
  • Czech: ketština — language
  • Dutch: Ket — language
  • Esperanto: Keta lingvo — language
  • Estonian: keti keel — language
  • Finnish: ketti — language
  • Finnish: ketin kieli — language
  • French: kete — language
  • German: Ketisch — language
  • Italian: ket — language
  • Japanese: ケット語 (Ketto-go) — language
  • Ket: Остыганбесь (Òstɨkanbesj) — language
  • Ket: Остыганна ӄаʼ (Òstɨkanna qaˀ) — language
  • Korean: 케트어 (Keteu-eo) — language
  • Norwegian: ketisk — language
  • Polish: język ketyjski — language
  • Polish: język kecki — language
  • Portuguese: ostiaco — language
  • Portuguese: ostíaco — language
  • Russian: ке́тский язы́к (kétskij jazýk) — language
  • Serbo-Croatian: ке̏тскӣ — language
  • Serbo-Croatian: kȅtskī — language
  • Spanish: ket — language
  • Swedish: ketiska — language
  • Tamil: கெட் மொழி (keṭ moḻi) — language
  • Bulgarian: кет (ket) — Translations
  • Chinese Mandarin: 右矢 (yòushǐ) — Translations
  • Finnish: ket — Translations
  • German: Ket — Translations
  • Italian: ket — Translations
  • Japanese: ケット (ketto) — Translations
  • Polish: ket — Translations