undovsutdWhich spelling fits?

Quick tell: undo is a verb, utd is an adjective, so they fill different roles in a sentence.

Which to use

“undo” is a verb and “utd” is an adjective - they look or sound alike but fill different roles in a sentence.

#13,631
“undo” frequency rank
#29,509
“utd” frequency rank
43140
confusion score

Side-by-Side Comparison

Feature undo utd
Definition To reverse the effects of an action. Abbreviation of united (especially in football teams).

Letter map: undo vs utd

Shared letters muted; letters that set undo and utd apart highlighted. Shared run: 2.

4 ch
undo
3 ch
utd

Part-of-speech tell for undo / utd

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: undo is averb and utdanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 43140, derived from the frequency rank of both members and their visual similarity.

undo is recorded at frequency rank #13,631, classified as averb, pronounced /ʌnˈduː/. utd is at rank #29,509, 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 43140, this pair ranks #242,796 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of undo vs utd

Shared letters: du. Private to "undo": no. Private to "utd": t.

"undo" · 4 letters · shape VCCV  ·  "utd" · 3 letters · shape VCC

Known mistypes of this pair

  • undonudo · udno · unddo · unndo · unod

Frequently Asked Questions

Do "undo" and "utd" mean the same thing in a sentence?
No - they are not even the same part of speech. "undo" is a verb and "utd" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "undo" or "utd" show up more?
"undo" is the more common of the two: it sits at frequency rank #13,631 in our English list, against #29,509 for "utd". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "undo" vs "utd" is on the table, pick a follow-up below.

  • Full dictionary entry for "undo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "utd" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #242,796 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "undo" and "utd" also get mixed up with nearby pairs, the highest-scored neighbour is "UAS vs utd". 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 #242,796 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