1. To remove into exile, to banish; to expel from a country: The court order sought to deport the mother even though her children, Jan and Jake, were born in the country where she had been living for the last ten years.
2. To behave or to conduct oneself in a specified way: Mrs. Thompson, the dance instructor, indicated that she expected her students to deport themselves appropriately during the dance competition.

Sally and Tommy, the young children, deported themselves with socially good behavior.

3. Etymology: from Modern French déporter; from Latin deportare, "to carry off, to transport, to banish, to exile"; from de-, "off, away" + portare. "to carry".