(1):

(v. i.) To go on board a vessel or a boat for a voyage; as, the troops embarked for Lisbon.

(2):

(v. t.) To engage, enlist, or invest (as persons, money, etc.) in any affair; as, he embarked his fortune in trade.

(3):

(v. t.) To cause to go on board a vessel or boat; to put on shipboard.

(4):

(v. i.) To engage in any affair.