definitionvsdefinitiveWhat's the difference?

Quick tell: definition is a noun, definitive is an adjective, so they fill different roles in a sentence.

Which to use

“definition” is a noun and “definitive” is an adjective - they look or sound alike but fill different roles in a sentence.

#2,574
“definition” frequency rank
#9,595
“definitive” frequency rank
12169
confusion score

Side-by-Side Comparison

Feature definition definitive
Definition A statement of the meaning of a word, word group, sign, or symbol; especially, a dictionary definition. explicitly defined

Where the spellings diverge

Shared letters are muted; the letters that actually set definition and definitive apart are highlighted. They share 8 letters in sequence, which is exactly why the eye skips the difference.

10 ch
definition
10 ch
definitive

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: definition is /ˌdɛf.ɪˈnɪʃ.ən/ while definitive is /dɪˈfɪn.ɪ.tɪv/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 12169, derived from the frequency rank of both members and their visual similarity.

definition is recorded at frequency rank #2,574, classified as anoun, pronounced /ˌdɛf.ɪˈnɪʃ.ən/. definitive is at rank #9,595, tagged as anadj, pronounced /dɪˈfɪn.ɪ.tɪv/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 12169, this pair ranks #483,084 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of definition vs definitive

Shared letters: defint. Private to "definition": o. Private to "definitive": v.

"definition" · 10 letters · shape CVCVCVCVVC  ·  "definitive" · 10 letters · shape CVCVCVCVCV

Known mistypes of this pair

  • definitionddefinition · deffinition · defiintion · definiiton · definision · definitino · definitionn · definitoin
  • definitiveddefinitive · deffinitive · defiintive · definiitve · definitiev · definitivve · definittive · definitvie

Frequency comparison

definition#2,574
definitive#9,595

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "definition" and "definitive" be used interchangeably?
No - they are not even the same part of speech. "definition" is a noun and "definitive" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "definition" or "definitive"?
"definition" is the more common of the two: it sits at frequency rank #2,574 in our English list, against #9,595 for "definitive". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering definition vs definitive

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “definition”; for an adjective, it's “definitive”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “definition” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list