Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “whatsit”


noun [C]     /ˈwɒt.sɪt/ US  /ˈwɑːt-/ informal
any object or person whose name you have temporarily forgotten or do not know : Where's the whatsit that you change channels with? You'd better tell whatsit - what's his name - the guy in charge of stationery .Names and titles
(Definition of whatsit noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of whatsit

Translations of “whatsit”

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More