implementvsimplementedWhich spelling fits?

Which to use

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

#5,135
“implement” frequency rank
#4,863
“implemented” frequency rank
9998
confusion score

Side-by-Side Comparison

Feature implement implemented
Definition To bring about; to put into practice; to carry out. simple past and past participle of implement

Where the eye mixes implement and implemented

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence.

9 ch
implement
11 ch
implemented

Look-alike desk: implement vs implemented

A purely visual mix-up. implement (/ˈɪmpləmənt/) and implemented (/ˈɪmpləmɛntɪd/) 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) - “implement” sits inside “implemented”. Our composite confusion score for this pair is 9998, derived from the frequency rank of both members and their visual similarity.

implement is recorded at frequency rank #5,135, classified as averb, pronounced /ˈɪmpləmənt/. implemented is at rank #4,863, tagged as averb, pronounced /ˈɪmpləmɛntɪd/.

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 9998, this pair ranks #494,543 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of implement vs implemented

Shared letters: eilmnpt. Private to "implement": -. Private to "implemented": d.

"implement" · 9 letters · shape VCCCVCVCC  ·  "implemented" · 11 letters · shape VCCCVCVCCVC

Known mistypes of this pair

  • implementimlpement · immplement · impelment · impleemnt · implemennt · implementt · implemetn · implemment
  • implementedimlpemented · immplemented · impelmented · impleemnted · implemenetd · implemennted · implementde · implementedd

Frequently Asked Questions

Is swapping "implement" for "implemented" ever safe?
No. They are said differently (/ˈɪmpləmənt/ versus /ˈɪmpləmɛntɪd/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "implement" vs "implemented" - which ranks higher?
"implemented" is the more common of the two: it sits at frequency rank #4,863 in our English list, against #5,135 for "implement". 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 "implement" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "implemented" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #494,543 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "implement" and "implemented" also get mixed up with nearby pairs, the highest-scored neighbour is "implement vs inclement". 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 #494,543 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