installvsinstalledTell them apart

Which to use

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

#5,695
“install” frequency rank
#3,632
“installed” frequency rank
9327
confusion score

Side-by-Side Comparison

Feature install installed
Definition To connect, set up or prepare something for use simple past and past participle of install

Where the eye mixes install and installed

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

7 ch
install
9 ch
installed

Why the eye confuses install with installed

A purely visual mix-up. install (/ɪnˈstɔːl/) and installed (/ɪnˈstɔːld/) 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 2 extra letter(s) - “install” sits inside “installed”. Our composite confusion score for this pair is 9327, derived from the frequency rank of both members and their visual similarity.

install is recorded at frequency rank #5,695, classified as averb, pronounced /ɪnˈstɔːl/. installed is at rank #3,632, tagged as averb, pronounced /ɪnˈstɔːld/.

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 9327, this pair ranks #497,962 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of install vs installed

Shared letters: ailnst. Private to "install": -. Private to "installed": de.

"install" · 7 letters · shape VCCCVCC  ·  "installed" · 9 letters · shape VCCCVCCVC

Known mistypes of this pair

  • installinnstall · insatll · insstall · instal · instlal · insttall · intsall · isntall
  • installedinnstalled · insatlled · insstalled · instaled · instaleld · installde · installedd · instlaled

Frequently Asked Questions

Do "install" and "installed" mean the same thing in a sentence?
No. They are said differently (/ɪnˈstɔːl/ versus /ɪnˈstɔːld/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "install" or "installed" show up more?
"installed" is the more common of the two: it sits at frequency rank #3,632 in our English list, against #5,695 for "install". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "install" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "installed" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #497,962 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "install" and "installed" also get mixed up with nearby pairs, the highest-scored neighbour is "install vs installer". 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 #497,962 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