firmvsFirstWhat's the difference?

Quick tell: firm is a adjective, First is a noun, so they fill different roles in a sentence.

Which to use

“firm” is an adjective and “First” is a noun - they look or sound alike but fill different roles in a sentence.

#49,672
“firm” frequency rank
#4,197
“First” frequency rank
53869
confusion score

Side-by-Side Comparison

Feature firm First
Definition umfassende Kenntnisse und Erfahrungen auf einem speziellen Gebiet besitzend höchste Kante an einem geneigten Dach

Where the eye mixes firm and First

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
firm
5 ch
First

Why the eye confuses firm with First

These two trip readers on the page rather than in the ear: firm is [fɪʁm] while First is [fɪʁst]. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 53869, derived from the frequency rank of both members and their visual similarity.

firm is recorded at frequency rank #49,672, classified as anadj, pronounced [fɪʁm]. First is at rank #4,197, tagged as anoun, pronounced [fɪʁst].

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 53869, this pair ranks #1,041,182 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of firm vs First

Shared letters: fir. Private to "firm": m. Private to "First": st.

"firm" · 4 letters · shape CVCC  ·  "First" · 5 letters · shape CVCCC

Known mistypes of this pair

  • firmffirm · fimr · firmm · firrm · frim · ifrm
  • Firstffirst · firrst · firsst · firstt · firts · fisrt · ifrst

Frequently Asked Questions

Can "firm" and "First" be used interchangeably?
No - they are not even the same part of speech. "firm" is an adjective and "First" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "firm" or "First" show up more?
"First" is the more common of the two: it sits at frequency rank #4,197 in our German list, against #49,672 for "firm". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "firm" and "First" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "firm" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "First" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,041,182 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "firm" and "First" also get mixed up with nearby pairs, the highest-scored neighbour is "firm vs fist". 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 #1,041,182 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