lookedvslookupWhich spelling fits?

Quick tell: looked is a verb, lookup is a noun, so they fill different roles in a sentence.

Which to use

“looked” is a verb and “lookup” is a noun - they look or sound alike but fill different roles in a sentence.

#811
“looked” frequency rank
#34,576
“lookup” frequency rank
35387
confusion score

Side-by-Side Comparison

Feature looked lookup
Definition simple past and past participle of look An attempt to retrieve data.

Letter map: looked vs lookup

Shared letters muted; letters that set looked and lookup apart highlighted. Shared run: 4. looked and lookup follow the identical consonant-vowel pattern (CVVCVC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
looked
6 ch
lookup

Role in the sentence - looked and lookup

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: looked is averb and lookupanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 35387, derived from the frequency rank of both members and their visual similarity.

looked is recorded at frequency rank #811, classified as averb, pronounced /lʊkt/. lookup is at rank #34,576, 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 35387, this pair ranks #312,443 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of looked vs lookup

Shared letters: klo. Private to "looked": de. Private to "lookup": pu.

"looked" · 6 letters · shape CVVCVC  ·  "lookup" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • looked ← llooked · loked · lokoed · looekd · lookde · lookedd · lookked · oloked
  • lookup ← llookup · lokoup · lokup · lookkup · lookpu · lookupp · looukp · olokup

Frequently Asked Questions

Is swapping "looked" for "lookup" ever safe?
No - they are not even the same part of speech. "looked" is a verb and "lookup" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "looked" or "lookup"?
"looked" is the more common of the two: it sits at frequency rank #811 in our English list, against #34,576 for "lookup". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Done with this confusable. These links stay specific to "looked" and "lookup".

  • Full dictionary entry for "looked" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lookup" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #312,443 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "looked" and "lookup" also get mixed up with nearby pairs, the highest-scored neighbour is "lockup vs lookup". 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 #312,443 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