okvsOMSWhat's the difference?

Quick tell: ok is a num, OMS is a noun, so they fill different roles in a sentence.

Which to use

“ok” is a num and “OMS” is a noun - they look or sound alike but fill different roles in a sentence.

#1,645
“ok” frequency rank
#12,882
“OMS” frequency rank
14527
confusion score

Side-by-Side Comparison

Feature ok OMS
Definition Ocho. Organismo de la organización de las Naciones Unidas (ONU) especializado en gestionar políticas de prevención, promoción e intervención en salud a nivel mundial.

Where the eye mixes ok and OMS

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

2 ch
ok
3 ch
OMS

Visual trap between ok and OMS

These two trip readers on the page rather than in the ear: ok is /ˈok/ while OMS is [ˈõms]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (num vs noun), which is usually the fastest check. Our composite confusion score for this pair is 14527, derived from the frequency rank of both members and their visual similarity.

ok is recorded at frequency rank #1,645, classified as anum, pronounced /ˈok/. OMS is at rank #12,882, tagged as anoun, pronounced [ˈõms].

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 14527, this pair ranks #283,779 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ok vs OMS

Shared letters: o. Private to "ok": k. Private to "OMS": ms.

"ok" · 2 letters · shape VC  ·  "OMS" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "ok" for "OMS" ever safe?
No - they are not even the same part of speech. "ok" is a num and "OMS" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "ok" or "OMS" show up more?
"ok" is the more common of the two: it sits at frequency rank #1,645 in our Spanish list, against #12,882 for "OMS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "ok" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "OMS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #283,779 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ok" and "OMS" also get mixed up with nearby pairs, the highest-scored neighbour is "ome vs OMS". Nearby pair

Confusion rank #283,779 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list