incisor

/ɪnˈsaɪ.zə(ɹ)/

//ɪnˈsaɪ.zə(ɹ)// noun

"incisor" is a 7-letter English headword indexed on PlainSpell.

The verdict

“incisor” is uncommon English (frequency #73,293 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#73,293
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A narrow-edged tooth at the front of the mouth of mammals, between the canines and adapted for cutting; in humans there are four in each jaw.

Corpus desk

Index EN-incisor · incisor · English

incisor · rank #73,293 · 0 variants · 0 confusables

  • FREQ-RARE #73,293
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH impoundment

Nearest frequency peer: impoundment (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “incisor”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “incisor” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for incisor
PropertyValue
Headwordincisor
LanguageEnglish
Part of speechNoun
IPA/ɪnˈsaɪ.zə(ɹ)/
Letters7
Frequency rank#73,293
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “incisor” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).incisorfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “impoundment” (#73,292), “incredulously” (#73,294), “impale” (#73,291). Among 2,140 “I” headwords, “incisor” is #73,293. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

incisor is uncommon English at frequency #73,293 among 2,140 “I” headwords, classed as anoun, transcribed /ɪnˈsaɪ.zə(ɹ)/. Rarity is why readers land here mid-draft. Gloss: "A narrow-edged tooth at the front of the mouth of mammals, between the canines and adapted for cutting; in humans there are four in each jaw.".

Zero misspellings are on record for incisor in our index, a straightforward case of a spelling with little room for common typos. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: Borrowing from New Latin incīsor, from incīdō (“to cut into, cut through”) + -tor (“-er, -or”, agent noun suffix). The correct English form is incisor, spelled I-N-C-I-S-O-R.

Definition

  1. 1
    A narrow-edged tooth at the front of the mouth of mammals, between the canines and adapted for cutting; in humans there are four in each jaw.

Etymology

Borrowing from New Latin incīsor, from incīdō (“to cut into, cut through”) + -tor (“-er, -or”, agent noun suffix).

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "incisor"?
"incisor" is spelled I-N-C-I-S-O-R. The IPA pronunciation is /ɪnˈsaɪ.zə(ɹ)/.
What does "incisor" mean?
As a noun, "incisor" means: A narrow-edged tooth at the front of the mouth of mammals, between the canines and adapted for cutting; in humans there are four in each jaw.
How do you pronounce "incisor"?
The IPA (International Phonetic Alphabet) transcription for "incisor" is /ɪnˈsaɪ.zə(ɹ)/. 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 "incisor"?
Borrowing from New Latin incīsor, from incīdō (“to cut into, cut through”) + -tor (“-er, -or”, agent noun suffix). 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "incisor", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list