competencyvscompetentlyConfusable pair

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

Which to use

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

#20,317
“competency” frequency rank
#45,284
“competently” frequency rank
65601
confusion score

Side-by-Side Comparison

Feature competency competently
Definition The ability to perform some task; competence. In a competent manner.

Letter map: competency vs competently

Shared letters muted; letters that set competency and competently apart highlighted. Shared run: 9.

10 ch
competency
11 ch
competently

Grammar separator: competency vs competently

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: competency is anoun and competentlyanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 65601, 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/. competently is at rank #45,284, tagged as anadv.

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 65601, this pair ranks #71,962 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of competency vs competently

Shared letters: cemnopty. Private to "competency": -. Private to "competently": l.

"competency" · 10 letters · shape CVCCVCVCCV  ·  "competently" · 11 letters · shape CVCCVCVCCCV

Known mistypes of this pair

  • competencyccompetency · cmopetency · comeptency · commpetency · compeetncy · competecny · competenccy · competencyy
  • competentlyccompetently · cmopetently · comeptently · commpetently · compeetntly · competenlty · competenntly · competentlly

Frequently Asked Questions

Do "competency" and "competently" mean the same thing in a sentence?
No - they are not even the same part of speech. "competency" is a noun and "competently" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "competency" or "competently" show up more?
"competency" is the more common of the two: it sits at frequency rank #20,317 in our English list, against #45,284 for "competently". 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 "competency" and "competently".

  • Full dictionary entry for "competency" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "competently" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #71,962 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "competency" and "competently" also get mixed up with nearby pairs, the highest-scored neighbour is "competent 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 #71,962 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