Which to use
“fas” is a verb and “fen” is a noun - they look or sound alike but fill different roles in a sentence.
- #38,095
- “fas” frequency rank
- #44,597
- “fen” frequency rank
- 82692
- confusion score
Side-by-Side Comparison
| Feature | fas | fen |
|---|---|---|
| Definition | 2. Person Singular Imperativ Präsens Aktiv des Verbs fasen | Fenn |
Where the eye mixes fas and fen
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. fas and fen 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 fas with fen
These two trip readers on the page rather than in the ear: fas is [faːs] while fen is [fɛn]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 82692, derived from the frequency rank of both members and their visual similarity.
fas is recorded at frequency rank #38,095, classified as averb, pronounced [faːs]. fen is at rank #44,597, tagged as anoun, pronounced [fɛn].
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 82692, this pair ranks #152,746 of 2,006,359 scored German confusable pairs - among the most confusable pairs.
Orthographic DNA of fas vs fen
Shared letters: f. Private to "fas": as. Private to "fen": en.
"fas" · 3 letters · shape CVC · "fen" · 3 letters · shape CVC
Frequently Asked Questions
Do "fas" and "fen" mean the same thing in a sentence?
Which is more common, "fas" or "fen"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "fas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fen" - compare definitions side by side with the headword page. Word entry
- This pair ranks #152,746 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "fas" and "fen" also get mixed up with nearby pairs, the highest-scored neighbour is "fay vs fen". Nearby pair
Confusion rank #152,746 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.