buy in

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Related to Bought In: bought the farm

buy in

1. To make a financial investment in a business or similar venture. No matter how you try to convince me that your latest scheme is going to make millions, I'm not buying in.
2. To believe in and support an idea, concept, or system. Rod's a good enough coach, but he just can't get the players to buy in—they still don't listen to him. We can't approach the CEO with our idea for overhauling the computer system until we get our boss to buy in first.
See also: buy

buy in

 (to something)
1. Lit. to purchase shares of something; to buy a part of something the ownership of which is shared with other owners. I bought into a company that makes dog food. Sounds like a good company. I would like to buy in.
2. Fig. to agree with; to accept an idea as worthwhile. The committee liked my proposal and decided to buy into my plan. Do you think you can get the whole board to buy in?
See also: buy