uhvsUVTell them apart

Quick tell: uh is a intj, UV is an adjective, so they fill different roles in a sentence.

Which to use

“uh” is an intj and “UV” is an adjective - they look or sound alike but fill different roles in a sentence.

#4,638
“uh” frequency rank
#12,525
“UV” frequency rank
17163
confusion score

Side-by-Side Comparison

Feature uh UV
Definition Expression of thought, confusion, or uncertainty. Abbreviation of ultraviolet.

Letter map: uh vs UV

Shared letters muted; letters that set uh and UV apart highlighted. Shared run: 1.

2 ch
uh
2 ch
UV

Grammar separator: uh vs UV

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: uh is anintj and UVanadjective. On the page they differ by a single letter - h in “uh” becomes v in “UV”. Our composite confusion score for this pair is 17163, derived from the frequency rank of both members and their visual similarity.

uh is recorded at frequency rank #4,638, classified as anintj, pronounced /ʌː/. UV is at rank #12,525, tagged as anadj.

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 17163, this pair ranks #453,226 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of uh vs UV

Shared letters: u. Private to "uh": h. Private to "UV": v.

"uh" · 2 letters · shape VC  ·  "UV" · 2 letters · shape VC

Frequently Asked Questions

Do "uh" and "UV" mean the same thing in a sentence?
No - they are not even the same part of speech. "uh" is an intj and "UV" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "uh" or "UV"?
"uh" is the more common of the two: it sits at frequency rank #4,638 in our English list, against #12,525 for "UV". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "uh" vs "UV" is on the table, pick a follow-up below.

  • Full dictionary entry for "uh" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "UV" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #453,226 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "uh" and "UV" also get mixed up with nearby pairs, the highest-scored neighbour is "UAS vs UV". Nearby pair

Confusion rank #453,226 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