dilatedvsdilutedWhat's the difference?

Which to use

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

#30,396
“dilated” frequency rank
#15,601
“diluted” frequency rank
45997
confusion score

Side-by-Side Comparison

Feature dilated diluted
Definition Having undergone dilation; enlarged. That has had something added in order to dilute it.

Letter map: dilated vs diluted

Shared letters muted; letters that set dilated and diluted apart highlighted. Shared run: 6.

7 ch
dilated
7 ch
diluted

Spelling & dictionary notes on dilated vs diluted

dilated and diluted 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 a single letter - a in “dilated” becomes u in “diluted”. Our composite confusion score for this pair is 45997, derived from the frequency rank of both members and their visual similarity.

dilated is recorded at frequency rank #30,396, classified as anadj, pronounced /daɪˈleɪtɪd/. diluted is at rank #15,601, 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 45997, this pair ranks #215,963 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of dilated vs diluted

Shared letters: deilt. Private to "dilated": a. Private to "diluted": u.

"dilated" · 7 letters · shape CVCVCVC  ·  "diluted" · 7 letters · shape CVCVCVC

Known mistypes of this pair

  • dilatedddilated · dialted · dilaetd · dilatde · dilatedd · dilatted · dillated · diltaed
  • dilutedddiluted · dilluted · diltued · diluetd · dilutde · dilutedd · dilutted · diulted

Frequently Asked Questions

Can "dilated" and "diluted" be used interchangeably?
No. They differ by a single letter - a in “dilated” becomes u in “diluted”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "dilated" vs "diluted" - which ranks higher?
"diluted" is the more common of the two: it sits at frequency rank #15,601 in our English list, against #30,396 for "dilated". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "dilated" and "diluted".

  • Full dictionary entry for "dilated" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "diluted" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #215,963 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "dilated" and "diluted" also get mixed up with nearby pairs, the highest-scored neighbour is "deflated vs dilated". 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 #215,963 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