undid
/ʌnˈdɪd/
"undid" is a 5-letter English headword indexed on PlainSpell.
The verdict
“undid” is uncommon English (frequency #51,473 among 23,789 “U” headwords), classed as a verb. The kind of spelling people second-guess.
- #51,473
- frequency rank, English
- 23,789
- “U” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - simple past of undo
| Property | Value |
|---|---|
| Headword | undid |
| Language | English |
| Part of speech | Verb |
| IPA | /ʌnˈdɪd/ |
| Letters | 5 |
| Frequency rank | #51,473 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “undid” sits in English frequency
Rare enough to double-check
undid is uncommon English at frequency #51,473 among 23,789 “U” headwords, classed as averb, transcribed /ʌnˈdɪd/. Rarity is why readers land here mid-draft. Gloss: "simple past of undo".
undid doesn't appear in our generated misspelling index, a sign its spelling follows regular English conventions. No close-neighbour confusable shows up for this headword in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.
No documented word history exists for this headword, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is undid, spelled U-N-D-I-D.
Definition
- 1simple past of undo
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "undid"?
What does "undid" mean?
How do you pronounce "undid"?
What language does "undid" come from?
Is PlainSpell free to use?
Using “undid”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is U-N-D-I-D - every other letter order is a misspelling in standard orthography.
- Say it as /ʌnˈdɪd/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.