Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “be/get in on the ground floor”

be/get in on the ground floor

to be or become involved in something from the beginning: He was sure that he was getting in on the ground floor with the next big thing.
(Definition of be/get in on the ground floor from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Word of the Day


a document given to students or reporters which contains information about a particular subject

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