corevscoyWhat's the difference?

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

Which to use

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

#1,892
“core” frequency rank
#25,336
“coy” frequency rank
27228
confusion score

Side-by-Side Comparison

Feature core coy
Definition In general usage, an essential part of a thing surrounded by other essential things. Bashful, shy, retiring.

Where the eye mixes core and coy

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

4 ch
core
3 ch
coy

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: core is /kɔː/ while coy is /kɔɪ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 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 27228, derived from the frequency rank of both members and their visual similarity.

core is recorded at frequency rank #1,892, classified as anoun, pronounced /kɔː/. coy is at rank #25,336, tagged as anadj, pronounced /kɔɪ/.

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 27228, this pair ranks #380,552 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of core vs coy

Shared letters: co. Private to "core": er. Private to "coy": y.

"core" · 4 letters · shape CVCV  ·  "coy" · 3 letters · shape CVV

Known mistypes of this pair

  • coreccore · coer · corre · croe · ocre

Frequently Asked Questions

Can "core" and "coy" be used interchangeably?
No - they are not even the same part of speech. "core" is a noun and "coy" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "core" or "coy"?
"core" is the more common of the two: it sits at frequency rank #1,892 in our English list, against #25,336 for "coy". 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 "core" and "coy". Here's where to go from here.

  • Full dictionary entry for "core" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #380,552 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "core" and "coy" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs coy". 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