Standard Lemma guide

lookup

noun · verb · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈlʊkˌʌp/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: L UH1 K AH0 P Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An attempt to retrieve data.

Definition source: English Wiktionary via Wiktextract

Examples

  • My database lookup failed because I misspelled the word.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The process of locating a term in a reference work.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

Misspelling of look up.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, misspelling

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

an operation that determines whether one or more of a set of items has a specified property

Definition source: Princeton WordNet 3.0

Examples

  • they wrote a program to do a table lookup

Meaning relationships

Synonyms: search

Antonyms: none provided

Broader terms: operation

History

Etymology

Deverbal from look up.