seedvsspeedoConfusable pair

Which to use

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

#3,846
“seed” frequency rank
#42,415
“speedo” frequency rank
46261
confusion score

Side-by-Side Comparison

Feature seed speedo
Definition Any propagative portion of a plant which may be sown, such as true seeds, seed-like fruits, tubers, or bulbs. A speedometer, particularly one in a race car or other automobile.

Letter map: seed vs speedo

Shared letters muted; letters that set seed and speedo apart highlighted. Shared run: 4. seed runs 4 letters (CVVC) against speedo's 6 (CCVVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
seed
6 ch
speedo

Spelling & dictionary notes on seed vs speedo

seed and speedo are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 46261, derived from the frequency rank of both members and their visual similarity.

seed is recorded at frequency rank #3,846, classified as anoun, pronounced /siːd/. speedo is at rank #42,415, tagged as anoun.

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 46261, this pair ranks #213,446 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of seed vs speedo

Shared letters: des. Private to "seed": -. Private to "speedo": op.

"seed" · 4 letters · shape CVVC  ·  "speedo" · 6 letters · shape CCVVCV

Known mistypes of this pair

  • seedesed · sede · seedd · sseed
  • speedopseedo · sepedo · spedeo · spedo · speeddo · speeod · sppeedo · sspeedo

Frequently Asked Questions

Do "seed" and "speedo" mean the same thing in a sentence?
No. They differ by 2 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "seed" or "speedo" show up more?
"seed" is the more common of the two: it sits at frequency rank #3,846 in our English list, against #42,415 for "speedo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "seed" and "speedo". Here's where to go from here.

  • Full dictionary entry for "seed" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "speedo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #213,446 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "seed" and "speedo" also get mixed up with nearby pairs, the highest-scored neighbour is "speedo vs speer". 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 #213,446 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