TonivsTOSWhich spelling fits?

Quick tell: Toni is a name, TOS is a noun, so they fill different roles in a sentence.

Which to use

“Toni” is a name and “TOS” is a noun - they look or sound alike but fill different roles in a sentence.

#13,829
“Toni” frequency rank
#19,720
“TOS” frequency rank
33549
confusion score

Side-by-Side Comparison

Feature Toni TOS
Definition A diminutive of the female given name Antonia, sometimes used as a formal given name. Initialism of terms of service.

Letter map: Toni vs TOS

Shared letters muted; letters that set Toni and TOS apart highlighted. Shared run: 2.

4 ch
Toni
3 ch
TOS

Part-of-speech tell for Toni / TOS

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Toni is aname and TOSanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 33549, derived from the frequency rank of both members and their visual similarity.

Toni is recorded at frequency rank #13,829, classified as aname. TOS is at rank #19,720, tagged as anoun, pronounced /tiː əʊ ɛs/.

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 33549, this pair ranks #328,458 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Toni vs TOS

Shared letters: ot. Private to "Toni": in. Private to "TOS": s.

"Toni" · 4 letters · shape CVCV  ·  "TOS" · 3 letters · shape CVC

Known mistypes of this pair

  • Toniotni · tnoi · toin · tonni · ttoni

Frequently Asked Questions

Is swapping "Toni" for "TOS" ever safe?
No - they are not even the same part of speech. "Toni" is a name and "TOS" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Toni" vs "TOS" - which ranks higher?
"Toni" is the more common of the two: it sits at frequency rank #13,829 in our English list, against #19,720 for "TOS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "Toni" and "TOS". Here's where to go from here.

  • Full dictionary entry for "Toni" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "TOS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #328,458 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Toni" and "TOS" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs TOS". 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 #328,458 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