thickevsthickenWhat's the difference?

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

Which to use

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

#38,202
“thicke” frequency rank
#41,424
“thicken” frequency rank
79626
confusion score

Side-by-Side Comparison

Feature thicke thicken
Definition Obsolete spelling of thick. To make thicker (in the sense of wider).

Letter map: thicke vs thicken

Shared letters muted; letters that set thicke and thicken apart highlighted. Shared run: 6.

6 ch
thicke
7 ch
thicken

Role in the sentence - thicke and thicken

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: thicke is anadjective and thickenaverb. On the page they differ by 1 extra letter(s) - “thicke” sits inside “thicken”. Our composite confusion score for this pair is 79626, derived from the frequency rank of both members and their visual similarity.

thicke is recorded at frequency rank #38,202, classified as anadj. thicken is at rank #41,424, tagged as averb, pronounced /ˈθɪkən/.

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 79626, this pair ranks #21,641 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of thicke vs thicken

Shared letters: cehikt. Private to "thicke": -. Private to "thicken": n.

"thicke" · 6 letters · shape CCVCCV  ·  "thicken" · 7 letters · shape CCVCCVC

Known mistypes of this pair

  • thickehticke · thcike · thhicke · thiccke · thicek · thickke · thikce · tihcke
  • thickenhticken · thciken · thhicken · thiccken · thicekn · thickenn · thickken · thickne

Frequently Asked Questions

Can "thicke" and "thicken" be used interchangeably?
No - they are not even the same part of speech. "thicke" is an adjective and "thicken" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "thicke" vs "thicken" - which ranks higher?
"thicke" is the more common of the two: it sits at frequency rank #38,202 in our English list, against #41,424 for "thicken". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "thicke" and "thicken". Here's where to go from here.

  • Full dictionary entry for "thicke" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "thicken" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #21,641 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "thicke" and "thicken" also get mixed up with nearby pairs, the highest-scored neighbour is "thicken vs thickly". 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 #21,641 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