buy into

buy into idiom
Purchase a membership, a share, or an interest in something. For example, I'd love to buy into this partnership, but I can't afford it. [First half of 1600s]

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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