sevssureWhat's the difference?

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

Which to use

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

#4,410
“se” frequency rank
#202
“sure” frequency rank
4612
confusion score

Side-by-Side Comparison

Feature se sure
Definition A type of ancient Chinese plucked zither. Physically secure and certain, non-failing, reliable.

Where the eye mixes se and sure

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

2 ch
se
4 ch
sure

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: se is /sɛ/ while sure is /ʃɔː(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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 4612, derived from the frequency rank of both members and their visual similarity.

se is recorded at frequency rank #4,410, classified as anoun, pronounced /sɛ/. sure is at rank #202, tagged as anadj, pronounced /ʃɔː(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 4612, this pair ranks #518,312 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of se vs sure

Shared letters: es. Private to "se": -. Private to "sure": ru.

"se" · 2 letters · shape CV  ·  "sure" · 4 letters · shape CVCV

Known mistypes of this pair

  • suresrue · ssure · suer · surre · usre

Frequently Asked Questions

Can "se" and "sure" be used interchangeably?
No - they are not even the same part of speech. "se" is a noun and "sure" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "se" or "sure"?
"sure" is the more common of the two: it sits at frequency rank #202 in our English list, against #4,410 for "se". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "se" and "sure". Here's where to go from here.

  • Full dictionary entry for "se" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sure" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #518,312 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "se" and "sure" also get mixed up with nearby pairs, the highest-scored neighbour is "se vs Sif". 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

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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

Source: FrequencyWords open word-frequency list