What does "embark" mean?

Embark: To engage, enlist, or invest (as persons, money, etc.) in any affair; as, he embarked his fortune in trade. It was the reputation of the sect upon which St. Paul embarked his salvation. South.

Additional senses

  1. 2.To go on board a vessel or a boat for a voyage; as, the troops embarked for Lisbon.
  2. 3.To engage in any affair. Slow to embark in such an undertaking. Macaulay.

Sources