competencyvscompetentTell them apart

Quick tell: competency is a noun, competent is an adjective, so they fill different roles in a sentence.

Which to use

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

#20,317
“competency” frequency rank
#8,018
“competent” frequency rank
28335
confusion score

Side-by-Side Comparison

Feature competency competent
Definition The ability to perform some task; competence. Having sufficient skill, knowledge, ability, or qualifications.

Where the eye mixes competency and competent

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

10 ch
competency
9 ch
competent

Look-alike desk: competency vs competent

These two trip readers on the page rather than in the ear: competency is /ˈkɒm.pə.tən.si/ while competent is /ˈkɒmpətənt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 28335, derived from the frequency rank of both members and their visual similarity.

competency is recorded at frequency rank #20,317, classified as anoun, pronounced /ˈkɒm.pə.tən.si/. competent is at rank #8,018, tagged as anadj, pronounced /ˈkɒmpətənt/.

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 28335, this pair ranks #371,895 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of competency vs competent

Shared letters: cemnopt. Private to "competency": y. Private to "competent": -.

"competency" · 10 letters · shape CVCCVCVCCV  ·  "competent" · 9 letters · shape CVCCVCVCC

Known mistypes of this pair

  • competencyccompetency · cmopetency · comeptency · commpetency · compeetncy · competecny · competenccy · competencyy
  • competentccompetent · cmopetent · comeptent · commpetent · compeetnt · competennt · competentt · competetn

Frequently Asked Questions

Is swapping "competency" for "competent" ever safe?
No - they are not even the same part of speech. "competency" is a noun and "competent" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "competency" or "competent" show up more?
"competent" is the more common of the two: it sits at frequency rank #8,018 in our English list, against #20,317 for "competency". 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 "competency" and "competent" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "competency" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "competent" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #371,895 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "competency" and "competent" also get mixed up with nearby pairs, the highest-scored neighbour is "competency vs competently". 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 #371,895 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