complicatevscomplicityWhat's the difference?

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

Which to use

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

#20,593
“complicate” frequency rank
#27,778
“complicity” frequency rank
48371
confusion score

Side-by-Side Comparison

Feature complicate complicity
Definition To make complex; to modify so as to make something intricate or difficult. The state of being complicit; involvement as a partner or accomplice, especially in a crime or other wrongdoing.

Letter map: complicate vs complicity

Shared letters muted; letters that set complicate and complicity apart highlighted. Shared run: 8.

10 ch
complicate
10 ch
complicity

Role in the sentence - complicate and complicity

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: complicate is averb and complicityanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48371, derived from the frequency rank of both members and their visual similarity.

complicate is recorded at frequency rank #20,593, classified as averb, pronounced /ˈkɑmplɪkeɪt/. complicity is at rank #27,778, tagged as anoun.

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 48371, this pair ranks #193,686 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of complicate vs complicity

Shared letters: cilmopt. Private to "complicate": ae. Private to "complicity": y.

"complicate" · 10 letters · shape CVCCCVCVCV  ·  "complicity" · 10 letters · shape CVCCCVCVCV

Known mistypes of this pair

  • complicateccomplicate · cmoplicate · comlpicate · commplicate · compilcate · complciate · compliacte · complicaet
  • complicityccomplicity · cmoplicity · comlpicity · commplicity · compilcity · complciity · compliccity · complicitty

Frequently Asked Questions

Is swapping "complicate" for "complicity" ever safe?
No - they are not even the same part of speech. "complicate" is a verb and "complicity" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "complicate" or "complicity" show up more?
"complicate" is the more common of the two: it sits at frequency rank #20,593 in our English list, against #27,778 for "complicity". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "complicate" and "complicity".

  • Full dictionary entry for "complicate" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "complicity" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #193,686 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "complicate" and "complicity" also get mixed up with nearby pairs, the highest-scored neighbour is "complicit vs complicity". 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 #193,686 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