sell (v)
betray (v)

Definition: deliver to an enemy by treachery
Example: Judas sold Jesus. The spy betrayed his country.

sell (v)

Definition: exchange or deliver for money or its equivalent
Example: He sold his house in January. She sells her body to survive and support her drug habit.

deal (v)
sell (v)
trade (v)

Definition: do business
Example: She deals in gold. The brothers sell shoes.