Buy

1. v. i. To negotiate or treat about a purchase.
2. v. t. To acquire the ownership of (property) by giving an accepted price or consideration therefor, or by agreeing to do so; to acquire by the payment of a price or value; to purchase; — opposed to sell.
3. v. t. To acquire or procure by something given or done in exchange, literally or figuratively; to get, at a cost or sacrifice; to buy pleasure with pain.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.