promvsProstTell them apart

Quick tell: prom is a noun, Prost is a name, so they fill different roles in a sentence.

Which to use

“prom” is a noun and “Prost” is a name - they look or sound alike but fill different roles in a sentence.

#39,950
“prom” frequency rank
#33,843
“Prost” frequency rank
73793
confusion score

Side-by-Side Comparison

Feature prom Prost
Definition Promenade. Nom de famille.

Letter map: prom vs Prost

Shared letters muted; letters that set prom and Prost apart highlighted. Shared run: 3.

4 ch
prom
5 ch
Prost

Role in the sentence - prom and Prost

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: prom is anoun and Prostaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 73793, derived from the frequency rank of both members and their visual similarity.

prom is recorded at frequency rank #39,950, classified as anoun. Prost is at rank #33,843, tagged as aname, pronounced \pʁɔst\.

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 73793, this pair ranks #39,224 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of prom vs Prost

Shared letters: opr. Private to "prom": m. Private to "Prost": st.

"prom" · 4 letters · shape CCVC  ·  "Prost" · 5 letters · shape CCVCC

Known mistypes of this pair

  • promporm · pprom · prmo · promm · prrom · rpom
  • Prostpprost · prosst · prostt · prrost · prsot · rpost

Frequently Asked Questions

Can "prom" and "Prost" be used interchangeably?
No - they are not even the same part of speech. "prom" is a noun and "Prost" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "prom" vs "Prost" - which ranks higher?
"Prost" is the more common of the two: it sits at frequency rank #33,843 in our French list, against #39,950 for "prom". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "prom" vs "Prost" is on the table, pick a follow-up below.

  • Full dictionary entry for "prom" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Prost" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #39,224 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "prom" and "Prost" also get mixed up with nearby pairs, the highest-scored neighbour is "prep vs prom". 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 #39,224 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list