look·​up | \ ˈlu̇k-ˌəp How to pronounce lookup (audio) \
variants: or look-up

Definition of lookup

 (Entry 1 of 2)

: an act, process, or instance of looking something up (as in a reference work or listing) dictionary lookups a price look-up

look up

looked up; looking up; looks up

Definition of look up (Entry 2 of 2)

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: Noun The hack worked because the unique transaction assigned to each lookup was predictable enough that attackers could include it in fake responses. Dan Goodin, Ars Technica, 3 May 2022 The Plus version costs $3.99 per month per line and adds caller ID, reverse number lookup, and additional nuisance call controls. Simon Hill, Wired, 12 Mar. 2022 The first step is to determine who the current owner and administrator of your domain is through what is known as a ‘WHOIS’ lookup. Ken Colburn, The Arizona Republic, 7 Mar. 2022 His background is unclear, but a domain lookup shows sergeydev[.]com is registered to a person in Poland named Sergey Bronovsky. Michael Kan, PCMAG, 23 Feb. 2022 The images use a domain name system leak detection service called dnslog.cn to see if the target cloud service is performing a DNS lookup. Dan Goodin, Ars Technica, 10 Dec. 2021 If the contact details aren’t clear, as might be the case with really old pages, one starting point is to check the web registration details through a WHOIS lookup. Matt Burgess, Wired, 3 Jan. 2022 The lookup volume for the word was high when coronavirus vaccines were first developed and rolled out across the country — but also increased amid debates around vaccination mandates. Washington Post, 29 Nov. 2021 To find out when a website was created, simply plug the URL into the Internet Corporation for Assigned Names and Numbers’ lookup tool. Nerd Wallet, oregonlive, 15 Nov. 2021 Recent Examples on the Web: Verb Upon entering the China pavilion’s main building, look up to see one of the brightest sights at Epcot, mostly red and round and downright photogenic. Dewayne Bevil, Orlando Sentinel, 21 July 2022 Don't look up: The fertile mind behind Get Out and Us explores unfriendly skies — and more earthbound threats — in his far-out latest. Leah Greenblatt, EW.com, 20 July 2022 To find out more, look up the Celebration for Equity in Education on Facebook or Instagram or visit linktr.ee/celebrationforequityined for ways to donate, volunteer or become a vendor. Mj Slaby, The Indianapolis Star, 12 July 2022 Food wise, look up restaurants in your area that serve treats such as Colombian empanadas or Mexican sweet bread. Selena Barrientos, Good Housekeeping, 8 July 2022 Come the first home game of the season, Osborne will look up into the stands and see his father wearing the name Utah Tech. Kevin Reynolds, The Salt Lake Tribune, 21 June 2022 Organizations look up to leaders who instill pride and provide direction, motivation, incentive and guidance and have a strong emotional awareness. Manish Gupta, Forbes, 17 June 2022 Fans may look up to players on the court, but Hunter is a hero on the sidelines. Caitlin O'kane, CBS News, 6 June 2022 As soon as the pronouncer, Jacques A. Bailly, says a word, Mr. Yuhas will look up its spelling and definition using Google and Merriam-Webster, the Bee’s official dictionary partner. New York Times, 2 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lookup.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of lookup


1948, in the meaning defined above


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

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

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Dictionary Entries Near lookup

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look up to

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Cite this Entry

“Lookup.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lookup. Accessed 9 Aug. 2022.

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