Which to use
“fern” is a noun and “fess” is a verb - they look or sound alike but fill different roles in a sentence.
- #20,354
- “fern” frequency rank
- #43,640
- “fess” frequency rank
- 63994
- confusion score
Side-by-Side Comparison
| Feature | fern | fess |
|---|---|---|
| Definition | Any of a group of some twenty thousand species of vascular plants classified in the division Pteridophyta that lack seeds and reproduce by shedding spores to initiate an alternation of generations. | To confess; to admit. |
Where the spellings diverge
Shared letters are muted; the letters that actually set fern and fess apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: fern is /fɜːn/ while fess is /fɛs/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 63994, derived from the frequency rank of both members and their visual similarity.
fern is recorded at frequency rank #20,354, classified as anoun, pronounced /fɜːn/. fess is at rank #43,640, tagged as averb, pronounced /fɛs/.
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 63994, this pair ranks #80,015 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of fern vs fess
Shared letters: ef. Private to "fern": nr. Private to "fess": s.
"fern" · 4 letters · shape CVCC · "fess" · 4 letters · shape CVCC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "fern" and "fess" be used interchangeably?
Which is more common, "fern" or "fess"?
Remembering fern vs fess
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “fern”; for a verb, it's “fess”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “fern” entry
- Browse more pairs most likely to be confused. Most confusable