Which to use
“fem” is a num and “flex” is a verb - they look or sound alike but fill different roles in a sentence.
- #43,170
- “fem” frequency rank
- #19,574
- “flex” frequency rank
- 62744
- confusion score
Side-by-Side Comparison
| Feature | fem | flex |
|---|---|---|
| Definition | fünf | 2. Person Singular Imperativ Präsens Aktiv des Verbs flexen |
Where the eye mixes fem and flex
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: fem vs flex
These two trip readers on the page rather than in the ear: fem is [fɛmˀ] while flex is [flɛks]. 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 (num vs verb), which is usually the fastest check. Our composite confusion score for this pair is 62744, 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]. flex is at rank #19,574, tagged as averb, pronounced [flɛks].
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 62744, this pair ranks #701,808 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fem vs flex
Shared letters: ef. Private to "fem": m. Private to "flex": lx.
"fem" · 3 letters · shape CVC · "flex" · 4 letters · shape CCVC
Known mistypes of this pair
- flex ← felx · fflex · flexx · fllex · flxe · lfex
Frequently Asked Questions
Do "fem" and "flex" mean the same thing in a sentence?
Which is more common, "fem" or "flex"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "fem" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "flex" - compare definitions side by side with the headword page. Word entry
- This pair ranks #701,808 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "fem" and "flex" also get mixed up with nearby pairs, the highest-scored neighbour is "fem vs firm". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #701,808 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.