inquirevsinquiryWhat's the difference?

Quick tell: inquire is a verb, inquiry is a noun, so they fill different roles in a sentence.

Which to use

“inquire” is a verb and “inquiry” is a noun - they look or sound alike but fill different roles in a sentence.

#17,646
“inquire” frequency rank
#4,681
“inquiry” frequency rank
22327
confusion score

Side-by-Side Comparison

Feature inquire inquiry
Definition To ask (about something). The act of inquiring; a seeking of information by asking questions; interrogation; a question or questioning.

Where the spellings diverge

Shared letters are muted; the letters that actually set inquire and inquiry apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

7 ch
inquire
7 ch
inquiry

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: inquire is /ɪnˈkwaɪə/ while inquiry is /ɪnˈkwaɪəɹi/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “inquire” becomes y in “inquiry”, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 22327, derived from the frequency rank of both members and their visual similarity.

inquire is recorded at frequency rank #17,646, classified as averb, pronounced /ɪnˈkwaɪə/. inquiry is at rank #4,681, tagged as anoun, pronounced /ɪnˈkwaɪəɹi/.

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 22327, this pair ranks #417,387 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of inquire vs inquiry

Shared letters: inqru. Private to "inquire": e. Private to "inquiry": y.

"inquire" · 7 letters · shape VCCVVCV  ·  "inquiry" · 7 letters · shape VCCVVCV

Known mistypes of this pair

  • inquireinnquire · inqiure · inqquire · inquier · inquirre · inqurie · inuqire · iqnuire
  • inquiryinnquiry · inqiury · inqquiry · inquirry · inquiryy · inquiyr · inquriy · inuqiry

Frequency comparison

inquire#17,646
inquiry#4,681

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "inquire" and "inquiry" be used interchangeably?
No - they are not even the same part of speech. "inquire" is a verb and "inquiry" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "inquire" or "inquiry"?
"inquiry" is the more common of the two: it sits at frequency rank #4,681 in our English list, against #17,646 for "inquire". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering inquire vs inquiry

The fastest way to pick the right one every time.

  • Check the role first: if you need a verb, it's “inquire”; for a noun, it's “inquiry”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “inquire” 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 FrequencyWords open word-frequency list