colloquialvscolloquiallyTell them apart

Quick tell: colloquial is a adjective, colloquially is an adverb, so they fill different roles in a sentence.

Which to use

“colloquial” is an adjective and “colloquially” is an adverb - they look or sound alike but fill different roles in a sentence.

#31,480
“colloquial” frequency rank
#42,068
“colloquially” frequency rank
73548
confusion score

Side-by-Side Comparison

Feature colloquial colloquially
Definition Characteristic of familiar conversation, of common parlance; informal. In a colloquial manner.

Where the eye mixes colloquial and colloquially

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. colloquial runs 10 letters (CVCCVCVVVC) against colloquially's 12 (CVCCVCVVVCCV) - the length gap alone is often enough to separate them once you know to check it.

10 ch
colloquial
12 ch
colloquially

Look-alike desk: colloquial vs colloquially

These two trip readers on the page rather than in the ear: colloquial is /kəˈləʊ.kwɪəl/ while colloquially is /kəˈləʊ.kwɪəli/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “colloquial” sits inside “colloquially”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 73548, derived from the frequency rank of both members and their visual similarity.

colloquial is recorded at frequency rank #31,480, classified as anadj, pronounced /kəˈləʊ.kwɪəl/. colloquially is at rank #42,068, tagged as anadv, pronounced /kəˈləʊ.kwɪəli/.

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 73548, this pair ranks #39,263 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of colloquial vs colloquially

Shared letters: aciloqu. Private to "colloquial": -. Private to "colloquially": y.

"colloquial" · 10 letters · shape CVCCVCVVVC  ·  "colloquially" · 12 letters · shape CVCCVCVVVCCV

Known mistypes of this pair

  • colloquial ← ccolloquial · cloloquial · colloqiual · colloqquial · colloquail · colloquiall · colloquila · collouqial
  • colloquially ← ccolloquially · cloloquially · colloqiually · colloqquially · colloquailly · colloquiallyy · colloquialy · colloquialyl

Frequently Asked Questions

Can "colloquial" and "colloquially" be used interchangeably?
No - they are not even the same part of speech. "colloquial" is an adjective and "colloquially" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "colloquial" or "colloquially" show up more?
"colloquial" is the more common of the two: it sits at frequency rank #31,480 in our English list, against #42,068 for "colloquially". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "colloquial" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "colloquially" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #39,263 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • 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 #39,263 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