BUY
1. To acquire the possession of, or the right to, by paying or promising to pay an equivalent, especially in money; purchase.
2. To acquire by exchange or concession.
3. To hire or obtain the services of.
4. To be the monetary or purchasing equivalent of.
5. A bargain..
6. To purchase a supply of; accumulate a stock of.
7. To purchase at an auction.
8. An act or instance of buying.
SELL
1. To transfer (goods) to or render (services) for another in exchange for money or valuables; dispose of to a purchaser for a price.
2. To deal in, keep, or offer for sale.
3. To make a sale or offer for sale to:
4. To persuade or induce someone to buy something.
5. To cause to be accepted, especially generally or widely:
To be offered for at a specific price.
To tranfer at a reduced prices, in order to get rid of.
CONSIGN
To hand over, ship, or deliver formally or officially; commit to as by common carrier, especially for sale or custody.
To transfer to anothers custody or charge; entrust.
To set apart for or devote to a special purpose or use.
To confirm or ratify, as with a seal or other token.
To relegate, assign or confide.
To give over to anothers care.
To assign to a person or place for a definite purpose.
Removing from ones control with formality.