look up

/ˈlʊk ʌp/

//ˈlʊk ʌp// verb

"look-up" is a 6-letter English headword indexed on PlainSpell.

The verdict

“look up” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Used other than figuratively or idiomatically: see look, up.

Corpus desk

Index EN-look-up · look up · English

look up · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "L" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for look up
PropertyValue
Headwordlook up
LanguageEnglish
Part of speechVerb
IPA/ˈlʊk ʌp/
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “look up” in English

look upsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

look up is uncommon English outside the top frequency list, classed as averb, transcribed /ˈlʊk ʌp/. Rarity is why readers land here mid-draft. 6 senses are on record.

look up doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.

This headword's origin isn't recorded in our source data, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is look up, spelled L-O-O-K- -U-P.

Definition

  1. 1
    Used other than figuratively or idiomatically: see look, up.
  2. 2
    To have better prospects.
  3. 3
    To obtain, or seek to obtain, information about something.
  4. 4
    To obtain, or seek to obtain, information about something.
  5. 5
    To obtain, or seek to obtain, information about something.
  6. 6
    To reconnect or meet with someone that one used to know.

Recorded use

Wiktionary examples

These source excerpts show how look up appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. We stayed up late to look up at the stars.
  2. Things started looking up after Jim moved back in with his parents.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "look up"?
"look up" is spelled L-O-O-K- -U-P. The IPA pronunciation is /ˈlʊk ʌp/.
What does "look up" mean?
As a verb, "look up" means: Used other than figuratively or idiomatically: see look, up.
How do you pronounce "look up"?
The IPA (International Phonetic Alphabet) transcription for "look up" is /ˈlʊk ʌp/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "look up" come from?
"look up" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list