caratvscastConfusable pair

Quick tell: carat is a noun, cast is a verb, so they fill different roles in a sentence.

Which to use

“carat” is a noun and “cast” is a verb - they look or sound alike but fill different roles in a sentence.

#23,773
“carat” frequency rank
#1,686
“cast” frequency rank
25459
confusion score

Side-by-Side Comparison

Feature carat cast
Definition A metric unit of mass equal to exactly 200 mg, chiefly used for measuring precious stones and pearls. To move, or be moved, away.

Where the eye mixes carat and cast

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. carat runs 5 letters (CVCVC) against cast's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
carat
4 ch
cast

Why the eye confuses carat with cast

These two trip readers on the page rather than in the ear: carat is /ˈkæ.ɹət/ while cast is /kɑːst/. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 25459, derived from the frequency rank of both members and their visual similarity.

carat is recorded at frequency rank #23,773, classified as anoun, pronounced /ˈkæ.ɹət/. cast is at rank #1,686, tagged as averb, pronounced /kɑːst/.

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 25459, this pair ranks #394,105 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of carat vs cast

Shared letters: act. Private to "carat": r. Private to "cast": s.

"carat" · 5 letters · shape CVCVC  ·  "cast" · 4 letters · shape CVCC

Known mistypes of this pair

  • carat ← acrat · caart · caratt · carrat · ccarat · craat
  • cast ← acst · casst · castt · ccast · csat

Frequently Asked Questions

Can "carat" and "cast" be used interchangeably?
No - they are not even the same part of speech. "carat" is a noun and "cast" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "carat" vs "cast" - which ranks higher?
"cast" is the more common of the two: it sits at frequency rank #1,686 in our English list, against #23,773 for "carat". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "carat" and "cast" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "carat" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cast" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #394,105 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "carat" and "cast" also get mixed up with nearby pairs, the highest-scored neighbour is "carat vs Croat". 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 #394,105 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