To raise or extend one's hand, often to signal or indicate a desire to speak, ask a question, or get attention.
Meaning of ‘Hand up’ Phrasal Verb in English
Hand up
Meaning
Examples
The auctioneer waited for bidders to hand up their paddles.
Don't be shy; feel free to hand up if you have something to add.
She handed up a note to the presenter with a clarification question.
Please hand up your homework assignments at the front of the classroom.
During the meeting, you can hand up any concerns or suggestions you have.
The teacher asked the students to hand up if they knew the answer to the question.