simulatevsstimulateWhich spelling fits?

Which to use

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

#16,346
“simulate” frequency rank
#11,801
“stimulate” frequency rank
28147
confusion score

Side-by-Side Comparison

Feature simulate stimulate
Definition To model, replicate, duplicate the behavior, appearance or properties of. To encourage into action.

Where the eye mixes simulate and stimulate

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

8 ch
simulate
9 ch
stimulate

Why the eye confuses simulate with stimulate

A purely visual mix-up. simulate (/ˈsɪm.jʊˌleɪt/) and stimulate (/ˈstɪm.jʊ.leɪt/) 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 28147, derived from the frequency rank of both members and their visual similarity.

simulate is recorded at frequency rank #16,346, classified as averb, pronounced /ˈsɪm.jʊˌleɪt/. stimulate is at rank #11,801, tagged as averb, pronounced /ˈstɪm.jʊ.leɪt/.

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 28147, this pair ranks #373,338 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of simulate vs stimulate

Shared letters: aeilmstu. Private to "simulate": -. Private to "stimulate": -.

"simulate" · 8 letters · shape CVCVCVCV  ·  "stimulate" · 9 letters · shape CCVCVCVCV

Known mistypes of this pair

  • simulateismulate · simluate · simmulate · simualte · simulaet · simulatte · simullate · simultae
  • stimulatesitmulate · sstimulate · stimluate · stimmulate · stimualte · stimulaet · stimulatte · stimullate

Frequently Asked Questions

Is swapping "simulate" for "stimulate" ever safe?
No. They are said differently (/ˈsɪm.jʊˌleɪt/ versus /ˈstɪm.jʊ.leɪt/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "simulate" or "stimulate"?
"stimulate" is the more common of the two: it sits at frequency rank #11,801 in our English list, against #16,346 for "simulate". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "simulate" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "stimulate" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #373,338 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "simulate" and "stimulate" also get mixed up with nearby pairs, the highest-scored neighbour is "simulate vs stipulate". 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 #373,338 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