o'svsOASWhat's the difference?

Quick tell: o's is a noun, OAS is a name, so they fill different roles in a sentence.

Which to use

“o's” is a noun and “OAS” is a name - they look or sound alike but fill different roles in a sentence.

#30,902
“o's” frequency rank
#44,377
“OAS” frequency rank
75279
confusion score

Side-by-Side Comparison

Feature o's OAS
Definition plural of the letter o Initialism of Organization of American States.

Where the spellings diverge

Shared letters are muted; the letters that actually set o's and OAS apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

3 ch
o's
3 ch
OAS

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: o's is anoun and OASaname. On the page they differ by a single letter - ' in “o's” becomes a in “OAS”. Our composite confusion score for this pair is 75279, derived from the frequency rank of both members and their visual similarity.

o's is recorded at frequency rank #30,902, classified as anoun, pronounced /əʊz/. OAS is at rank #44,377, 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 75279, this pair ranks #33,635 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of o's vs OAS

Shared letters: os. Private to "o's": -. Private to "OAS": a.

"o's" · 2 letters · shape VC  ·  "OAS" · 3 letters · shape VVC

Frequency comparison

o's#30,902
OAS#44,377

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "o's" and "OAS" be used interchangeably?
No - they are not even the same part of speech. "o's" is a noun and "OAS" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "o's" or "OAS"?
"o's" is the more common of the two: it sits at frequency rank #30,902 in our English list, against #44,377 for "OAS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering o's vs OAS

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “o's”; for a name, it's “OAS”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “o's” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list