femvsflTell them apart

Quick tell: fem is a num, fl is an abbrev, so they fill different roles in a sentence.

Which to use

“fem” is a num and “fl” is an abbrev - they look or sound alike but fill different roles in a sentence.

#43,170
“fem” frequency rank
#13,360
“fl” frequency rank
56530
confusion score

Side-by-Side Comparison

Feature fem fl
Definition fünf Femtoliter (= 10⁻¹⁵ l, ein billiardstel Liter)

Letter map: fem vs fl

Shared letters muted; letters that set fem and fl apart highlighted. Shared run: 1.

3 ch
fem
2 ch
fl

Part-of-speech tell for fem / fl

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: fem is anum and flanabbrev. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 56530, derived from the frequency rank of both members and their visual similarity.

fem is recorded at frequency rank #43,170, classified as anum, pronounced [fɛmˀ]. fl is at rank #13,360, tagged as anabbrev.

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 56530, this pair ranks #936,622 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fem vs fl

Shared letters: f. Private to "fem": em. Private to "fl": l.

"fem" · 3 letters · shape CVC  ·  "fl" · 2 letters · shape CC

Frequently Asked Questions

Can "fem" and "fl" be used interchangeably?
No - they are not even the same part of speech. "fem" is a num and "fl" an abbrev, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fem" or "fl"?
"fl" is the more common of the two: it sits at frequency rank #13,360 in our German list, against #43,170 for "fem". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "fem" vs "fl" is on the table, pick a follow-up below.

  • Full dictionary entry for "fem" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fl" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #936,622 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "fem" and "fl" also get mixed up with nearby pairs, the highest-scored neighbour is "fem vs firm". Nearby pair

Confusion rank #936,622 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list