focusvsforumWhich spelling fits?

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

Which to use

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

#11,412
“focus” frequency rank
#3,198
“forum” frequency rank
14610
confusion score

Side-by-Side Comparison

Feature focus forum
Definition Concentré sur l’action. Place publique où les citoyens romains se réunissaient pour marchander, traiter d’affaires politiques ou économiques.

Where the eye mixes focus and forum

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

5 ch
focus
5 ch
forum

Visual trap between focus and forum

These two trip readers on the page rather than in the ear: focus is \fɔ.kys\ while forum is \fɔ.ʁɔm\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 14610, derived from the frequency rank of both members and their visual similarity.

focus is recorded at frequency rank #11,412, classified as anadj, pronounced \fɔ.kys\. forum is at rank #3,198, tagged as anoun, pronounced \fɔ.ʁɔm\.

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 14610, this pair ranks #395,934 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of focus vs forum

Shared letters: fou. Private to "focus": cs. Private to "forum": mr.

"focus" · 5 letters · shape CVCVC  ·  "forum" · 5 letters · shape CVCVC

Known mistypes of this pair

  • focusfcous · ffocus · foccus · focsu · focuss · foucs · ofcus
  • forumfforum · formu · forrum · forumm · fourm · froum · ofrum

Frequently Asked Questions

Is swapping "focus" for "forum" ever safe?
No - they are not even the same part of speech. "focus" is an adjective and "forum" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "focus" or "forum" show up more?
"forum" is the more common of the two: it sits at frequency rank #3,198 in our French list, against #11,412 for "focus". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "focus" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "forum" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #395,934 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "focus" and "forum" also get mixed up with nearby pairs, the highest-scored neighbour is "fichus vs focus". 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 #395,934 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