offvsOstTell them apart

Quick tell: off is a adverb, Ost is a noun, so they fill different roles in a sentence.

Which to use

“off” is an adverb and “Ost” is a noun - they look or sound alike but fill different roles in a sentence.

#3,093
“off” frequency rank
#27,958
“Ost” frequency rank
31051
confusion score

Side-by-Side Comparison

Feature off Ost
Definition de maneira distanciada leste

Letter map: off vs Ost

Shared letters muted; letters that set off and Ost apart highlighted. Shared run: 1.

3 ch
off
3 ch
Ost

Grammar separator: off vs Ost

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: off is anadverb and Ostanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 31051, derived from the frequency rank of both members and their visual similarity.

off is recorded at frequency rank #3,093, classified as anadv. Ost is at rank #27,958, tagged as anoun, pronounced /ɔst/.

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 31051, this pair ranks #37,160 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of off vs Ost

Shared letters: o. Private to "off": f. Private to "Ost": st.

"off" · 3 letters · shape VCC  ·  "Ost" · 3 letters · shape VCC

Frequently Asked Questions

Can "off" and "Ost" be used interchangeably?
No - they are not even the same part of speech. "off" is an adverb and "Ost" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "off" vs "Ost" - which ranks higher?
"off" is the more common of the two: it sits at frequency rank #3,093 in our Portuguese list, against #27,958 for "Ost". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "off" and "Ost".

  • Full dictionary entry for "off" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ost" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #37,160 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "off" and "Ost" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs Ost". Nearby pair

Confusion rank #37,160 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list