lookup

1 of 2

noun

look·​up ˈlu̇k-ˌəp How to pronounce lookup (audio)
variants or look-up
: an act, process, or instance of looking something up (as in a reference work or listing)
dictionary lookups
a price look-up

look up

2 of 2

verb

looked up; looking up; looks up

intransitive verb

1
: to cheer up
look up—things are not all bad
2
: to improve in prospects or conditions
business is looking up

transitive verb

1
: to search for in or as if in a reference work
look up an address
2
: to seek out especially for a brief visit
look me up when you're here

Examples of lookup in a Sentence

Verb be sure to look me up if you're ever in town by the next morning, the skies had begun to clear and we were looking up
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Beyond the hardware, it’s packed with AI features like Circle to Search for instant lookups and Handwriting Assist to tidy up your messy notes, all backed by a 20-hour battery that lasts well beyond the standard workday. Juhi Wadia, PC Magazine, 25 Mar. 2026 Read the full report for Monkey King by searching for the restaurant on the Kansas inspection lookup. Eleanor Nash, Kansas City Star, 20 Mar. 2026
Verb
Barker recommends those who want to donate look up their local union district on the American Federation of Government Employees website, or give through their local labor council. Arkansas Online, 23 Mar. 2026 Barker recommends those who want to donate look up their local union district on the AFGE website, or give through their local labor council. ABC News, 22 Mar. 2026 See All Example Sentences for lookup

Word History

First Known Use

Noun

1948, in the meaning defined above

Verb

14th century, in the meaning defined at intransitive sense 1

Time Traveler
The first known use of lookup was in the 14th century

Browse Nearby Words

Cite this Entry

“Lookup.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lookup. Accessed 27 Mar. 2026.

Kids Definition

lookup

1 of 2 noun
look·​up ˈlu̇k-ˌəp How to pronounce lookup (audio)
: the process or an instance of looking something up
especially : the process of matching by computer the words of a text with material stored in memory

look up

2 of 2 verb
: to seek for or out
look up a word in the dictionary
look up a friend
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster