insurevsinsuredWhat's the difference?

Quick tell: insure is a verb, insured is an adjective, so they fill different roles in a sentence.

Which to use

“insure” is a verb and “insured” is an adjective - they look or sound alike but fill different roles in a sentence.

#17,164
“insure” frequency rank
#11,400
“insured” frequency rank
28564
confusion score

Side-by-Side Comparison

Feature insure insured
Definition To provide for compensation if some specified risk occurs. Often agreed by policy (contract) to offer financial compensation in case of an accident, theft or other undesirable event. Covered by an insurance policy.

Where the spellings diverge

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

6 ch
insure
7 ch
insured

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: insure is /ɪnˈʃɔː(ɹ)/ while insured is /ɪnˈʃʊəd/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “insure” sits inside “insured”, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 28564, derived from the frequency rank of both members and their visual similarity.

insure is recorded at frequency rank #17,164, classified as averb, pronounced /ɪnˈʃɔː(ɹ)/. insured is at rank #11,400, tagged as anadj, pronounced /ɪnˈʃʊəd/.

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 28564, this pair ranks #370,074 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of insure vs insured

Shared letters: einrsu. Private to "insure": -. Private to "insured": d.

"insure" · 6 letters · shape VCCVCV  ·  "insured" · 7 letters · shape VCCVCVC

Known mistypes of this pair

  • insureinnsure · insrue · inssure · insuer · inusre · isnure · nisure
  • insuredinnsured · insrued · inssured · insuerd · insurde · insuredd · insurred · inusred

Frequency comparison

insure#17,164
insured#11,400

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "insure" and "insured" be used interchangeably?
No - they are not even the same part of speech. "insure" is a verb and "insured" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "insure" or "insured"?
"insured" is the more common of the two: it sits at frequency rank #11,400 in our English list, against #17,164 for "insure". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering insure vs insured

The fastest way to pick the right one every time.

  • Check the role first: if you need a verb, it's “insure”; for an adjective, it's “insured”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “insure” 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