How do you spell Embark

Available Definitions:
1)  v. t. - To cause to go on board a vessel or boat; to put on shipboard.
2)  v. t. - To engage, enlist, or invest (as persons, money, etc.) in any affair; as, he embarked his fortune in trade.
3)  v. i. - To go on board a vessel or a boat for a voyage; as, the troops embarked for Lisbon.
4)  v. i. - To engage in any affair.