English
Noun
buy in (countable and uncountable, plural buy ins)
- Alternative spelling of buy-in
Verb
buy in (third-person singular simple present buys in, present participle buying in, simple past and past participle bought in)
- To accept an idea as valid; to join in on a concept.
- To invest as part of a group; to put one's personal stake in an investment.
- To buy back for the owner at an auction.