1. An act of buying and selling; the purchase and exchange of something for profit (a business deal).
2. An arrangement for mutual advantage (the witness accepted the prosecutor’s deal to testify in exchange for immunity).
3. An indefinite quantity (a great deal of money).
deal, vb.
1. To distribute (something) (to deal drugs).
2. To transact business with (a person or entity) (to deal with the competitor).
3. To conspire with (a person or entity) (to deal for the account).