omervsouterConfusable pair

Quick tell: omer is a noun, outer is an adjective, so they fill different roles in a sentence.

Which to use

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

#34,212
“omer” frequency rank
#4,694
“outer” frequency rank
38906
confusion score

Side-by-Side Comparison

Feature omer outer
Definition A former small Hebrew unit of dry volume equal to about 2.3 L or 2.1 quarts. Outside; external.

Where the eye mixes omer and outer

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

4 ch
omer
5 ch
outer

Why the eye confuses omer with outer

These two trip readers on the page rather than in the ear: omer is /ˈəʊmə/ while outer is /ˈaʊtə/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 38906, derived from the frequency rank of both members and their visual similarity.

omer is recorded at frequency rank #34,212, classified as anoun, pronounced /ˈəʊmə/. outer is at rank #4,694, tagged as anadj, pronounced /ˈaʊtə/.

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 38906, this pair ranks #281,632 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of omer vs outer

Shared letters: eor. Private to "omer": m. Private to "outer": tu.

"omer" · 4 letters · shape VCVC  ·  "outer" · 5 letters · shape VVCVC

Known mistypes of this pair

  • omeroemr · omerr · ommer
  • outerotuer · ouetr · outerr · outre · outter · uoter

Frequently Asked Questions

Is swapping "omer" for "outer" ever safe?
No - they are not even the same part of speech. "omer" is a noun and "outer" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "omer" or "outer"?
"outer" is the more common of the two: it sits at frequency rank #4,694 in our English list, against #34,212 for "omer". 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 "omer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "outer" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #281,632 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "omer" and "outer" also get mixed up with nearby pairs, the highest-scored neighbour is "omer vs omi". 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 #281,632 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list