Which to use
“fen” is a noun and “fis” is a verb - they look or sound alike but fill different roles in a sentence.
- #44,597
- “fen” frequency rank
- #26,408
- “fis” frequency rank
- 71005
- confusion score
Side-by-Side Comparison
| Feature | fen | fis |
|---|---|---|
| Definition | Fenn | 1. Person Singulra Indikativ historisches Perfekt Aktiv des Verbs faire |
Where the eye mixes fen and fis
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. fen and fis follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses fen with fis
These two trip readers on the page rather than in the ear: fen is [fɛn] while fis is [fi]. 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 71005, derived from the frequency rank of both members and their visual similarity.
fen is recorded at frequency rank #44,597, classified as anoun, pronounced [fɛn]. fis is at rank #26,408, tagged as averb, pronounced [fi].
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 71005, this pair ranks #429,426 of 2,006,359 scored German confusable pairs - among the most confusable pairs.
Orthographic DNA of fen vs fis
Shared letters: f. Private to "fen": en. Private to "fis": is.
"fen" · 3 letters · shape CVC · "fis" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "fen" for "fis" ever safe?
Which is more common, "fen" or "fis"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "fen" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fis" - compare definitions side by side with the headword page. Word entry
- This pair ranks #429,426 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "fen" and "fis" also get mixed up with nearby pairs, the highest-scored neighbour is "fay vs fen". Nearby pair
Confusion rank #429,426 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.