optvsOTSWhat's the difference?

Quick tell: opt is a verb, OTS is a noun, so they fill different roles in a sentence.

Which to use

“opt” is a verb and “OTS” is a noun - they look or sound alike but fill different roles in a sentence.

#8,325
“opt” frequency rank
#44,979
“OTS” frequency rank
53304
confusion score

Side-by-Side Comparison

Feature opt OTS
Definition To choose; select. Initialism of opportunity to see.

Letter map: opt vs OTS

Shared letters muted; letters that set opt and OTS apart highlighted. Shared run: 2.

3 ch
opt
3 ch
OTS

Role in the sentence - opt and OTS

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: opt is averb and OTSanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 53304, derived from the frequency rank of both members and their visual similarity.

opt is recorded at frequency rank #8,325, classified as averb, pronounced /ɒpt/. OTS is at rank #44,979, tagged as anoun.

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 53304, this pair ranks #150,056 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of opt vs OTS

Shared letters: ot. Private to "opt": p. Private to "OTS": s.

"opt" · 3 letters · shape VCC  ·  "OTS" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "opt" for "OTS" ever safe?
No - they are not even the same part of speech. "opt" is a verb and "OTS" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "opt" or "OTS" show up more?
"opt" is the more common of the two: it sits at frequency rank #8,325 in our English list, against #44,979 for "OTS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "opt" and "OTS".

  • Full dictionary entry for "opt" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "OTS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #150,056 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "opt" and "OTS" also get mixed up with nearby pairs, the highest-scored neighbour is "omi vs OTS". Nearby pair

Confusion rank #150,056 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