This means going away from a place to another place. You use it when talking about travel or leaving a place.
The train will depart at five.
We depart from the airport soon.
This meaning is used to say someone has died in a polite way. It is formal and not used often in daily talk.
He departed last night peacefully.
Many people have departed this year.
This means to move away from what is normal or expected. People, talks, or plans can depart from usual ways.
The speaker departed from the main topic.
She departed from her usual style today.
This use means to ask or order someone to leave a place, often in a formal or official way.
The workers were told to depart immediately.
You must depart after the meeting ends.
This means to break away or become different from something. It can be physical or abstract.
The ship departs from its moorings.
The new theory departs from old ideas.
Used to say that someone or something begins a trip or trip starts moving away from the place.
We depart early to avoid traffic.
The ship departs after sunrise.