festervsForsterTell them apart

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

Which to use

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

#38,838
“fester” frequency rank
#19,841
“Forster” frequency rank
58679
confusion score

Side-by-Side Comparison

Feature fester Forster
Definition A fistula. An occupational or topographic surname originating as an occupation for someone who worked or lived in a forest.

Letter map: fester vs Forster

Shared letters muted; letters that set fester and Forster apart highlighted. Shared run: 5.

6 ch
fester
7 ch
Forster

Part-of-speech tell for fester / Forster

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: fester is anoun and Forsteraname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 58679, derived from the frequency rank of both members and their visual similarity.

fester is recorded at frequency rank #38,838, classified as anoun, pronounced /ˈfɛstə(ɹ)/. Forster is at rank #19,841, tagged as aname.

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 58679, this pair ranks #111,012 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of fester vs Forster

Shared letters: efrst. Private to "fester": -. Private to "Forster": o.

"fester" · 6 letters · shape CVCCVC  ·  "Forster" · 7 letters · shape CVCCCVC

Known mistypes of this pair

  • festerefster · fesetr · fesster · festerr · festre · festter · fetser · ffester
  • Forsterfforster · forrster · forsetr · forsster · forsterr · forstre · forstter · fortser

Frequently Asked Questions

Can "fester" and "Forster" be used interchangeably?
No - they are not even the same part of speech. "fester" is a noun and "Forster" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "fester" vs "Forster" - which ranks higher?
"Forster" is the more common of the two: it sits at frequency rank #19,841 in our English list, against #38,838 for "fester". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "fester" vs "Forster" is on the table, pick a follow-up below.

  • Full dictionary entry for "fester" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Forster" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #111,012 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fester" and "Forster" also get mixed up with nearby pairs, the highest-scored neighbour is "fester vs fete". 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 #111,012 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list