a phrasal verb with hand /hænd/ verb [T]

(B1) to give something to someone in a position of authority:

Have you handed in your history essay yet?

I've decided to hand in my resignation (= tell my employer I am leaving my job).

Please hand in your keys at the reception on your departure from the hotel.

Remember to check your essay carefully before you hand it into me.

When you have completed the form, hand it in at the desk.

When you've finished your worksheets, clip them together and hand them into me.

I handed in my resignation this morning.