dodovsdudWhat's the difference?

Which to use

“dodo” and “dud” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#33,624
“dodo” frequency rank
#29,251
“dud” frequency rank
62875
confusion score

Side-by-Side Comparison

Feature dodo dud
Definition A large, flightless bird, †Raphus cucullatus, related to the pigeon, that is now extinct (since the 1600s) and was native to Mauritius. A device or machine that is useless because it does not work properly or has failed to work, such as a bomb, or explosive projectile.

Where the eye mixes dodo and dud

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
dodo
3 ch
dud

Visual trap between dodo and dud

A purely visual mix-up. dodo (/ˈdəʊdəʊ/) and dud (/dʌd/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 62875, derived from the frequency rank of both members and their visual similarity.

dodo is recorded at frequency rank #33,624, classified as anoun, pronounced /ˈdəʊdəʊ/. dud is at rank #29,251, tagged as anoun, pronounced /dʌd/.

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 62875, this pair ranks #86,092 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of dodo vs dud

Shared letters: d. Private to "dodo": o. Private to "dud": u.

"dodo" · 4 letters · shape CVCV  ·  "dud" · 3 letters · shape CVC

Known mistypes of this pair

  • dododdodo · ddoo · doddo · dood · oddo

Frequently Asked Questions

Do "dodo" and "dud" mean the same thing in a sentence?
No. They are said differently (/ˈdəʊdəʊ/ versus /dʌd/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "dodo" vs "dud" - which ranks higher?
"dud" is the more common of the two: it sits at frequency rank #29,251 in our English list, against #33,624 for "dodo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "dodo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dud" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #86,092 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "dodo" and "dud" also get mixed up with nearby pairs, the highest-scored neighbour is "dodo vs dox". 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 #86,092 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