An act of selling.

“This is going to be a tough sell.”

An easy task.

An imposition, a cheat; a hoax; a disappointment; anything occasioning a loss of pride or dignity.

(ditransitive) To transfer goods or provide services in exchange for money.

“I'll sell you all three for a hundred dollars.”

To be sold.

“The corn sold for a good price.”

To promote a product or service.