embark on (something)
1. To begin a particular journey or trip, as on some mode of transportation. Do you know when Karen embarks on her trip for Rome? I want to see her before she leaves.
2. By extension, to begin any course of action. I want to go back to school for a business degree, and I plan to embark on that process this fall.
embark on something
1. . Lit. to begin a journey by boarding a ship, airplane, etc. They embarked on their journey from San Juan.
2. Fig. to begin a project; to begin any process. When will you embark on your new project?