This meaning is used when people get on a ship, plane, or vehicle to start traveling. It is a physical action at the start of a trip.
We embark on the ship at noon.
They embark on the plane now.
This meaning is used when someone starts a new job, project, or important activity. It means beginning something with purpose.
She will embark on a new career soon.
We embark on a project together.
This is a more formal or technical meaning used in maritime or military contexts. It means getting on a ship or boat ready to depart.
The sailors embark at the harbor.
Troops embark before the battle.
This meaning is figurative; it means to start an important experience or journey that is not physical but emotional or mental.
He embarks on a journey of self-discovery.
They embark on a path to success.