thickvsthunkConfusable pair

Quick tell: thick is a adjective, thunk is a verb, so they fill different roles in a sentence.

Which to use

“thick” is an adjective and “thunk” is a verb - they look or sound alike but fill different roles in a sentence.

#3,265
“thick” frequency rank
#47,382
“thunk” frequency rank
50647
confusion score

Side-by-Side Comparison

Feature thick thunk
Definition Relatively great in extent from one surface to the opposite in its smallest solid dimension. past participle of think

Where the eye mixes thick and thunk

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
thick
5 ch
thunk

Visual trap between thick and thunk

These two trip readers on the page rather than in the ear: thick is /θɪk/ while thunk is /θʌŋk/. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 50647, derived from the frequency rank of both members and their visual similarity.

thick is recorded at frequency rank #3,265, classified as anadj, pronounced /θɪk/. thunk is at rank #47,382, tagged as averb, pronounced /θʌŋk/.

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 50647, this pair ranks #172,380 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of thick vs thunk

Shared letters: hkt. Private to "thick": ci. Private to "thunk": nu.

"thick" · 5 letters · shape CCVCC  ·  "thunk" · 5 letters · shape CCVCC

Known mistypes of this pair

  • thickhtick · thcik · thhick · thicck · thickk · thikc · tihck · tthick
  • thunkhtunk · thhunk · thnuk · thukn · thunkk · thunnk · tthunk · tuhnk

Frequently Asked Questions

Is swapping "thick" for "thunk" ever safe?
No - they are not even the same part of speech. "thick" is an adjective and "thunk" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "thick" or "thunk"?
"thick" is the more common of the two: it sits at frequency rank #3,265 in our English list, against #47,382 for "thunk". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "thick" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "thunk" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #172,380 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "thick" and "thunk" also get mixed up with nearby pairs, the highest-scored neighbour is "Thun vs thunk". 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 #172,380 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