insecurevsinsureWhich spelling fits?

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

Which to use

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

#10,871
“insecure” frequency rank
#17,164
“insure” frequency rank
28035
confusion score

Side-by-Side Comparison

Feature insecure insure
Definition Not secure. 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.

Where the eye mixes insecure and insure

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

8 ch
insecure
6 ch
insure

Look-alike desk: insecure vs insure

These two trip readers on the page rather than in the ear: insecure is /ɪnsəˈkjʊə(ɹ)/ while insure is /ɪnˈʃɔː(ɹ)/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 28035, derived from the frequency rank of both members and their visual similarity.

insecure is recorded at frequency rank #10,871, classified as anadj, pronounced /ɪnsəˈkjʊə(ɹ)/. insure is at rank #17,164, tagged as averb, pronounced /ɪnˈʃɔː(ɹ)/.

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 28035, this pair ranks #374,235 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of insecure vs insure

Shared letters: einrsu. Private to "insecure": c. Private to "insure": -.

"insecure" · 8 letters · shape VCCVCVCV  ·  "insure" · 6 letters · shape VCCVCV

Known mistypes of this pair

  • insecureinescure · innsecure · insceure · inseccure · insecrue · insecuer · insecurre · inseucre
  • insureinnsure · insrue · inssure · insuer · inusre · isnure · nisure

Frequently Asked Questions

Do "insecure" and "insure" mean the same thing in a sentence?
No - they are not even the same part of speech. "insecure" is an adjective and "insure" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "insecure" or "insure" show up more?
"insecure" is the more common of the two: it sits at frequency rank #10,871 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.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "insecure" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "insure" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #374,235 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "insecure" and "insure" also get mixed up with nearby pairs, the highest-scored neighbour is "Inoue vs insure". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #374,235 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list