English Word Reference Free

ninja

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

5 characters

Language

English

word origin

Source

Wiktionary

open dictionary

Access

Free

no sign-up needed

Detailed reference entry for the English word "ninja", 5-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "ninja" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "ninja" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

ninja is aEnglishnoun. It means: A person trained in ninjutsu, especially (historical) one used for espionage, assassination, and other tasks requiring stealth during Japan's shogunate period. Pronounced /ˈnɪnd͡ʒə/. It ranks #8,700 in English word frequency. Often confused with ninth and Nisha.

Key facts for ninja
PropertyValue
Headwordninja
LanguageEnglish
Part of speechNoun
IPA/ˈnɪnd͡ʒə/
Letters5
Frequency rank#8,700
Misspellings tracked7
Confusable pairs10
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of ninja in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for ninja is 5 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈnɪnd͡ʒə/. Corpus data places it at rank #8,700 in overall English word frequency, indicating it appears regularly in written and spoken text.Wiktionary records 8 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 7 documented wrong-spelling variants for ninja, with forms such as "innja", "nijna", and "ninaj". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 10 confusable-pair relationships, "ninth", "Nisha", "nia", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: A romanized borrowing of Japanese 忍者 (ninja), popularized within Japanese by manga after World War II and in English by Eric Van Lustbader's 1980 novel The Ninja and the 1981 movie Enter the Ninja, of uncertain derivation but with an underlying sense of sec… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is ninja, spelled N-I-N-J-A, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    A person trained in ninjutsu, especially (historical) one used for espionage, assassination, and other tasks requiring stealth during Japan's shogunate period.
  2. 2
    A person considered similarly skillful to the historical ninja, especially in covert or stealthy operation.
  3. 3
    A person considered similarly skillful to the historical ninja, especially in covert or stealthy operation.
  4. 4
    A person considered similarly skillful to the historical ninja, especially in covert or stealthy operation.
  5. 5
    A person considered to look like the historical ninja in some way, including (historical slang) an amateur private miner in Mongolia.
  6. 6
    Synonym of nigga as a friendly term of address.
  7. 7
    Synonym of nigga as a friendly term of address.
  8. 8
    nigger.

Etymology

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

Synonyms

This word in other languages

Common misspellings

Also misspelled as: innja,nijna,ninaj,ninjja,ninnja,nnija,nninja

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for ninja

Misspelling Variants of "ninja"

innja5nijna5ninaj5ninjja6ninnja6nnija5nninja6
Misspelling Variants of "ninja"

Frequency rank: #8,700 in English

Frequently Asked Questions

How do you spell "ninja"?
"ninja" is spelled N-I-N-J-A. The IPA pronunciation is /ˈnɪnd͡ʒə/.
What does "ninja" mean?
As a noun, "ninja" means: A person trained in ninjutsu, especially (historical) one used for espionage, assassination, and other tasks requiring stealth during Japan's shogunate period.
What words are commonly confused with "ninja"?
"ninja" is commonly confused with "ninth", "Nisha", "nia". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "ninja"?
The IPA (International Phonetic Alphabet) transcription for "ninja" is /ˈnɪnd͡ʒə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "ninja"?
A romanized borrowing of Japanese 忍者 (ninja), popularized within Japanese by manga after World War II and in English by Eric Van Lustbader's 1980 novel The Ninja and the 1981 movie Enter the Ninja, of uncertain derivation but with an underlying se... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Nearby English words

Other entries that begin with the letter N in our English index:

Explore PlainSpell

Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.