The noun buy has 1 sense (no senses from tagged texts)
1. bargain, buy, steal -- (an advantageous purchase; "she got a bargain at the auction"; "the stock was a real buy at that price")
Overview of verb buy
The verb buy has 5 senses (first 5 from tagged texts)
1. (594) buy, purchase -- (obtain by purchase; acquire by means of a financial transaction; "The family purchased a new car"; "The conglomerate acquired a new company"; "She buys for the big department store")
2. (7) bribe, corrupt, buy, grease one's palms -- (make illegal payments to in exchange for favors or influence; "This judge can be bought")
3. (5) buy -- (acquire by trade or sacrifice or exchange; "She wanted to buy his love with her dedication to him and his work")
4. (4) buy -- (accept as true; "I can't buy this story")
5. (3) buy -- (be worth or be capable of buying; "This sum will buy you a ride on the train")