lookup

1 of 2

noun

look·​up ˈlu̇k-ˌəp 

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

Synonyms of lookup

Verb

• pursue
• seek
• search (for or out)

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

In addition to disabling its national lookup feature for all of California and prohibiting the formation of data sharing relationships between agencies inside and out of the state, Simmons said the company has also agreed to pay a $290,000 fee for any unauthorized data disclosures. —Sierra Lopez, Mercury News, 18 Mar. 2026

For more information, drivers can visit the NHTSA website and Ford's online recall lookup using their vehicle's VIN, or call the company's customer service line at 1-866-436-7332. —CBS News, 8 Mar. 2026

Verb

In the first two weeks of the war, there has been a surge in the number of Americans looking to save money on energy—by asking for quotes on home solar systems and looking up electric vehicles online. —Bill McKibben, New Yorker, 18 Mar. 2026

But things are finally looking up for the 7-foot-2 big man. —Zack Cox, Boston Herald, 18 Mar. 2026

Word History

First Known Use

Noun

1948, in the meaning defined above

Verb

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

Kids Definition

lookup

1 of 2 noun

look·​up ˈlu̇k-ˌəp 

: 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