surevssurveyWhat's the difference?

Quick tell: sure is a adjective, survey is a noun, so they fill different roles in a sentence.

Which to use

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

#42,717
“sure” frequency rank
#41,088
“survey” frequency rank
83805
confusion score

Side-by-Side Comparison

Feature sure survey
Definition Seguro, convencido. Un cuestionario o instrumento similar usado para examinar las opiniones de un grupo de gente, encuesta.

Where the eye mixes sure and survey

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. sure runs 4 letters (CVCV) against survey's 6 (CVCCVV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
sure
6 ch
survey

Why the eye confuses sure with survey

These two trip readers on the page rather than in the ear: sure is /ʃʊə/ (fusión pour–poor) while survey is /ˈsɜː.veɪ/. 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 noun), which is usually the fastest check. Our composite confusion score for this pair is 83805, derived from the frequency rank of both members and their visual similarity.

sure is recorded at frequency rank #42,717, classified as anadj, pronounced /ʃʊə/ (fusión pour–poor). survey is at rank #41,088, tagged as anoun, pronounced /ˈsɜː.veɪ/.

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 83805, this pair ranks #7,710 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of sure vs survey

Shared letters: ersu. Private to "sure": -. Private to "survey": vy.

"sure" · 4 letters · shape CVCV  ·  "survey" · 6 letters · shape CVCCVV

Known mistypes of this pair

  • sure ← srue · ssure · surre
  • survey ← sruvey · ssurvey · surbey · surevy · surrvey · surveyy · survvey · survye

Frequently Asked Questions

Can "sure" and "survey" be used interchangeably?
No - they are not even the same part of speech. "sure" is an adjective and "survey" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sure" or "survey"?
"survey" is the more common of the two: it sits at frequency rank #41,088 in our Spanish list, against #42,717 for "sure". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "sure" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "survey" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #7,710 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "sure" and "survey" also get mixed up with nearby pairs, the highest-scored neighbour is "sari vs sure". 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 #7,710 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list