ground floor, get in on the

ground floor, get in on the idiom
Participate in the beginning of a venture, thereby gaining some advantage. For example, Investors were eager to get in on the ground floor of the new development. [First half of 1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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