obi vs OK, What's the Difference?

Which to use

“obi” and “OK” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#18,379
“obi” frequency rank: #750
“OK” frequency rank: 19129
confusion score

Side-by-Side Comparison

Feature	obi	OK
Definition	A sash worn with a kimono.	Endorsement; approval; acceptance; acquiescence.

Where the eye mixes obi and OK

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

obi

2 ch

Why the eye confuses obi with OK

A purely visual mix-up. obi (/ˈoʊbi/) and OK (/ˌəʊˈkeɪ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 19129, derived from the frequency rank of both members and their visual similarity.

obi is recorded at frequency rank #18,379, classified as anoun, pronounced /ˈoʊbi/. OK is at rank #750, tagged as anoun, pronounced /ˌəʊˈkeɪ/.

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 19129, this pair ranks #440,311 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of obi vs OK

Shared letters: o. Private to "obi": bi. Private to "OK": k.

"obi" · 3 letters · shape VCV · "OK" · 2 letters · shape VC

Frequently Asked Questions

Do "obi" and "OK" mean the same thing in a sentence?

No. They are said differently (/ˈoʊbi/ versus /ˌəʊˈkeɪ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Frequency check: "obi" vs "OK" - which ranks higher?

"OK" is the more common of the two: it sits at frequency rank #750 in our English list, against #18,379 for "obi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "obi" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "OK" - compare definitions side by side with the headword page. Word entry
This pair ranks #440,311 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"obi" and "OK" also get mixed up with nearby pairs, the highest-scored neighbour is "obi vs omi". Nearby pair

Confusion rank #440,311 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.