Which to use
“fm” is a symbol and “für” is a preposition - they look or sound alike but fill different roles in a sentence.
- #9,661
- “fm” frequency rank
- #24,219
- “für” frequency rank
- 33880
- confusion score
Side-by-Side Comparison
| Feature | fm | für |
|---|---|---|
| Definition | Symbole du fathom (la brasse en français), unité de mesure de profondeur hydrographique. | Pour, à l’intention de. |
Where the eye mixes fm and für
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. fm runs 2 letters (CC) against für's 3 (CVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: fm vs für
These two trip readers on the page rather than in the ear: fm is \ˈfæð.əm\ while für is \fyːɐ̯\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (symbol vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 33880, derived from the frequency rank of both members and their visual similarity.
fm is recorded at frequency rank #9,661, classified as asymbol, pronounced \ˈfæð.əm\. für is at rank #24,219, tagged as aprep, pronounced \fyːɐ̯\.
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 33880, this pair ranks #287,652 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fm vs für
Shared letters: f. Private to "fm": m. Private to "für": rü.
"fm" · 2 letters · shape CC · "für" · 3 letters · shape CVC
Frequently Asked Questions
Can "fm" and "für" be used interchangeably?
Frequency check: "fm" vs "für" - which ranks higher?
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 "fm" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "für" - compare definitions side by side with the headword page. Word entry
- This pair ranks #287,652 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fm" and "für" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs für". Nearby pair
Confusion rank #287,652 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.