Which to use
“concern” is a noun and “concerned” is an adjective - they look or sound alike but fill different roles in a sentence.
- #2,195
- “concern” frequency rank
- #1,815
- “concerned” frequency rank
- 4010
- confusion score
Side-by-Side Comparison
| Feature | concern | concerned |
|---|---|---|
| Definition | That which affects one’s welfare or happiness. A matter of interest to someone. | Showing concern. |
Where the spellings diverge
Shared letters are muted; the letters that actually set concern and concerned apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
concern and concerned form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 2 extra letter(s) - “concern” sits inside “concerned” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 4010, derived from the frequency rank of both members and their visual similarity.
concern is recorded at frequency rank #2,195, classified as anoun, pronounced /kənˈsɝn/. concerned is at rank #1,815, tagged as anadj, pronounced /kənˈsɝnd/.
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 4010, this pair ranks #520,290 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "concern" and "concerned" be used interchangeably?
Remembering concern vs concerned
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “concern”; for an adjective, it's “concerned”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “concern” entry
- Browse more pairs most likely to be confused. Most confusable