chastevscoastsTell them apart

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

Which to use

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

#36,921
“chaste” frequency rank
#17,795
“coasts” frequency rank
54716
confusion score

Side-by-Side Comparison

Feature chaste coasts
Definition Synonym of pure and virtuous, particularly plural of coast

Where the eye mixes chaste and coasts

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. chaste (CCVCCV) and coasts (CVVCCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
chaste
6 ch
coasts

Look-alike desk: chaste vs coasts

These two trip readers on the page rather than in the ear: chaste is /t͡ʃeɪst/ while coasts is /koʊsts/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 54716, derived from the frequency rank of both members and their visual similarity.

chaste is recorded at frequency rank #36,921, classified as anadj, pronounced /t͡ʃeɪst/. coasts is at rank #17,795, tagged as anoun, pronounced /koʊsts/.

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 54716, this pair ranks #138,954 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of chaste vs coasts

Shared letters: acst. Private to "chaste": eh. Private to "coasts": o.

"chaste" · 6 letters · shape CCVCCV  ·  "coasts" · 6 letters · shape CVVCCC

Known mistypes of this pair

  • chastecahste · cchaste · chaset · chasste · chastte · chatse · chhaste · chsate
  • coastscaosts · ccoasts · coassts · coastss · coastts · cosats · ocasts

Frequently Asked Questions

Can "chaste" and "coasts" be used interchangeably?
No - they are not even the same part of speech. "chaste" is an adjective and "coasts" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "chaste" or "coasts" show up more?
"coasts" is the more common of the two: it sits at frequency rank #17,795 in our English list, against #36,921 for "chaste". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "chaste" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coasts" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #138,954 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "chaste" and "coasts" also get mixed up with nearby pairs, the highest-scored neighbour is "chaise vs chaste". 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 #138,954 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