ObivsosaTell them apart

Quick tell: Obi is a name, osa is a verb, so they fill different roles in a sentence.

Which to use

“Obi” is a name and “osa” is a verb - they look or sound alike but fill different roles in a sentence.

#35,620
“Obi” frequency rank
#43,047
“osa” frequency rank
78667
confusion score

Side-by-Side Comparison

Feature Obi osa
Definition Variante de Ob. Troisième personne du singulier du passé simple de oser.

Where the eye mixes Obi and osa

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. Obi and osa follow the identical consonant-vowel pattern (VCV). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
Obi
3 ch
osa

Visual trap between Obi and osa

These two trip readers on the page rather than in the ear: Obi is [ɔbi] while osa is \o.za\. 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 (name vs verb), which is usually the fastest check. Our composite confusion score for this pair is 78667, derived from the frequency rank of both members and their visual similarity.

Obi is recorded at frequency rank #35,620, classified as aname, pronounced [ɔbi]. osa is at rank #43,047, tagged as averb, pronounced \o.za\.

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 78667, this pair ranks #25,165 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of Obi vs osa

Shared letters: o. Private to "Obi": bi. Private to "osa": as.

"Obi" · 3 letters · shape VCV  ·  "osa" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "Obi" for "osa" ever safe?
No - they are not even the same part of speech. "Obi" is a name and "osa" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Obi" vs "osa" - which ranks higher?
"Obi" is the more common of the two: it sits at frequency rank #35,620 in our French list, against #43,047 for "osa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "Obi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "osa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #25,165 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Obi" and "osa" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs osa". Nearby pair

Confusion rank #25,165 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