Standard Lemma guide

ninja

adj · noun · verb · 17 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.

  • UK, US: /ˈnɪnd͡ʒə/
  • US: Recorded audio is listed in the source snapshot.
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ɪndʒə
  • CMU ARPABET: N IH1 N JH AH0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Fast and sneaky.

Definition source: English Wiktionary via Wiktextract

Usage: informal, not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Initialism of no income, no job or assets, describing credit characteristics of a borrower, usually of a residential mortgage.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism, not-comparable

Topics: business, finance

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

One trained in ninjutsu, especially one used for espionage, assassination, and other tasks requiring stealth during Japan's shogunate period.

Definition source: English Wiktionary via Wiktextract

Usage: historical

Topics: government, hobbies, lifestyle, martial-arts, military, politics, sports, war

Examples

  • He used to work in the Japanese agency as a ninja.

Meaning relationships

Synonyms: assassin, shinobi, spy

Antonyms: none provided

4

noun

Meaning 4

One who very skillful, considered similar to the historical ninja, especially in covert or stealthy operation.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: killer, spy, superspy, magician, secret agent

Antonyms: none provided

5

noun

Meaning 5

One who very skillful, considered similar to the historical ninja, especially in covert or stealthy operation.

A notional draconian arm of a corporation (originally Nintendo), tasked with dealing with individuals that infringe on its rights or do not comply with its regulations.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively, in-plural, slang

Topics: lifestyle, video-games

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: killer, spy, superspy, magician, secret agent

Antonyms: none provided

6

noun

Meaning 6

One who very skillful, considered similar to the historical ninja, especially in covert or stealthy operation.

A programmer or tech worker, particularly one skilled in a particular programming language or environment; used especially in job adverts.

Definition source: English Wiktionary via Wiktextract

Usage: dated, figuratively, informal

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: killer, spy, superspy, magician, secret agent

Antonyms: none provided

7

noun

Meaning 7

One who is considered to resemble the historical ninja in some way.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

One who is considered to resemble the historical ninja in some way.

An amateur private miner in Mongolia.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively, historical, slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

Synonym of nigga, used as a friendly term of address.

Definition source: English Wiktionary via Wiktextract

Usage: euphemistic

Qualifier: African-American Vernacular

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: nigga, used as a friendly term of address

Antonyms: none provided

10

noun

Meaning 10

Synonym of nigga, used as a friendly term of address.

Synonym of man; used as a friendly term of address.

Definition source: English Wiktionary via Wiktextract

Usage: euphemistic

Qualifier: African-American Vernacular; Juggalo slang; Juggalo slang

Examples

  • What up, my ninja!

Meaning relationships

Synonyms: man

Antonyms: none provided

11

noun

Meaning 11

Synonym of nigger.

Definition source: English Wiktionary via Wiktextract

Usage: ethnic, euphemistic, slur

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: nigger

Antonyms: none provided

12

noun

Meaning 12

An anti-government Bakongo rebel, active in Pool Department, Republic of the Congo (Congo-Brazzaville).

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

verb

Meaning 13

To act or move like a ninja, particularly with regard to a combination of speed, power, and stealth.

Definition source: English Wiktionary via Wiktextract

Usage: ambitransitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

verb

Meaning 14

to beat someone to a post; to make the same reply just before the other party finishes typing, making their response redundant.

Definition source: English Wiktionary via Wiktextract

Usage: Internet

Examples

  • When I hit post, I saw that Blue Emu had ninja'd me, so I just deleted my reply.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

15

verb

Meaning 15

To claim an item through abuse of game mechanics.

Definition source: English Wiktionary via Wiktextract

Usage: Internet, slang

Topics: games, gaming

Examples

  • That damn warrior ninja'd an epic-quality wand even though he can't even use it!

Meaning relationships

Synonyms: none provided

Antonyms: none provided

16

noun

Meaning 16

a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: class, stratum, social class, socio-economic class

17

noun

Meaning 17

a member of the ninja who were trained in martial arts and hired for espionage or sabotage or assassinations; a person skilled in ninjutsu

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: mercenary, soldier of fortune

History

Etymology

Borrowed from Japanese 忍者 (ninja), of uncertain derivation but with an underlying sense of secret or hidden person. Popularized in Japanese by manga after World War II and in English by the 1980 novel The Ninja by Eric Van Lustbader and the 1981 movie Enter the Ninja Noun sense 3.1 (“Mongolian miner”) arose from the supposed resemblance of the bowls used to wash ore with mercury to the shells of the main characters from Teenage Mutant Ninja Turtles. The Juggalo slang sense arose via influence from AAVE nigga.

From ninja.

Across languages

Translations

61 source translations are retained for this English entry.

  • Arabic: نِينْجَا (nīnjā) — spy and mercenary in pre-modern Japan
  • Arabic: نِنْجَا (ninjā) — spy and mercenary in pre-modern Japan
  • Armenian: նինջա (ninǰa) — spy and mercenary in pre-modern Japan
  • Asturian: ninja — spy and mercenary in pre-modern Japan
  • Azerbaijani: nindza — spy and mercenary in pre-modern Japan
  • Bashkir: ниндзя (nindzya) — spy and mercenary in pre-modern Japan
  • Basque: ninja — spy and mercenary in pre-modern Japan
  • Belarusian: ні́ндзя (níndzja) — spy and mercenary in pre-modern Japan
  • Bulgarian: ни́нджа (níndža) — spy and mercenary in pre-modern Japan
  • Catalan: ninja — spy and mercenary in pre-modern Japan
  • Cebuano: ninja — spy and mercenary in pre-modern Japan
  • Chinese: 忍者 (zh-min-nan) — spy and mercenary in pre-modern Japan
  • Chinese Mandarin: 忍者 (rěnzhě) — spy and mercenary in pre-modern Japan
  • Czech: ninja — spy and mercenary in pre-modern Japan
  • Danish: ninja — spy and mercenary in pre-modern Japan
  • Dutch: ninja — spy and mercenary in pre-modern Japan
  • Esperanto: ninĵo — spy and mercenary in pre-modern Japan
  • Finnish: ninja — spy and mercenary in pre-modern Japan
  • French: ninja — spy and mercenary in pre-modern Japan
  • Galician: ninja — spy and mercenary in pre-modern Japan
  • Georgian: ნინძა (ninʒa) — spy and mercenary in pre-modern Japan
  • German: Ninja — spy and mercenary in pre-modern Japan
  • Greek: νίντζα (níntza) — spy and mercenary in pre-modern Japan
  • Hebrew: נִינְגָ׳ה (nínja) — spy and mercenary in pre-modern Japan
  • Hindi: निंजा (niñjā) — spy and mercenary in pre-modern Japan
  • Hindi: निञ्जा (niñjā) — spy and mercenary in pre-modern Japan
  • Hungarian: nindzsa — spy and mercenary in pre-modern Japan
  • Icelandic: ninja — spy and mercenary in pre-modern Japan
  • Ido: ninja — spy and mercenary in pre-modern Japan
  • Indonesian: ninja — spy and mercenary in pre-modern Japan
  • Italian: ninja — spy and mercenary in pre-modern Japan
  • Japanese: 忍者 (ninja) — spy and mercenary in pre-modern Japan
  • Japanese: 忍び (shinobi) — spy and mercenary in pre-modern Japan
  • Japanese: 忍びの者 (shinobi no mono) — spy and mercenary in pre-modern Japan
  • Javanese: shinobi — spy and mercenary in pre-modern Japan
  • Korean: 닌자 (ninja) — spy and mercenary in pre-modern Japan
  • Macedonian: нинџа (nindža) — spy and mercenary in pre-modern Japan
  • Malay: ninja — spy and mercenary in pre-modern Japan
  • Marathi: निंजा (niñjā) — spy and mercenary in pre-modern Japan
  • Marathi: निनजा (ninjā) — spy and mercenary in pre-modern Japan
  • Mazanderani: نینجا — spy and mercenary in pre-modern Japan
  • Mongolian: нинжа (ninža) — spy and mercenary in pre-modern Japan
  • Norwegian Bokmål: ninja — spy and mercenary in pre-modern Japan
  • Iranian Persian: نینْجا (ninjâ) — spy and mercenary in pre-modern Japan
  • Polish: ninja — spy and mercenary in pre-modern Japan
  • Portuguese: ninja — spy and mercenary in pre-modern Japan
  • Russian: ни́ндзя (níndzja) — spy and mercenary in pre-modern Japan
  • Serbo-Croatian: ни̑нџа — spy and mercenary in pre-modern Japan
  • Serbo-Croatian: nȋndža — spy and mercenary in pre-modern Japan
  • Slovene: nindža — spy and mercenary in pre-modern Japan
  • Spanish: ninja — spy and mercenary in pre-modern Japan
  • Swedish: ninja — spy and mercenary in pre-modern Japan
  • Tamil: நிஞ்சா (niñcā) — spy and mercenary in pre-modern Japan
  • Telugu: నింజా (niñjā) — spy and mercenary in pre-modern Japan
  • Thai: นินจา (nin-jaa) — spy and mercenary in pre-modern Japan
  • Turkish: ninja — spy and mercenary in pre-modern Japan
  • Ukrainian: ні́ндзя (níndzja) — spy and mercenary in pre-modern Japan
  • Urdu: نِنْجا (ninjā) — spy and mercenary in pre-modern Japan
  • Vietnamese: ninja — spy and mercenary in pre-modern Japan
  • Vietnamese: nhẫn giả — spy and mercenary in pre-modern Japan
  • Yiddish: נינדזשאַ (nindzha) — spy and mercenary in pre-modern Japan
Real reading context

ninja in complete knowledge articles