Definition of excuse me
1 —used as a polite way of starting to say something Excuse me, but do you mind if I shut the window?
2 —used as a polite way of starting to interrupt someone Excuse me, but may I say something?
3 —used as a polite way of trying to get someone's attention Excuse me, do you know where I can find Maple Street?
4 —used as a polite way of starting to say one disagrees with someone Excuse me, but I don't think those figures are entirely accurate.
5 —used as a polite apology for a minor fault or offense, such as laughing, coughing, or burping
6 US —used as a polite apology for getting in someone's way or bumping into someone Oh, excuse me. I didn't notice you standing there.
7 chiefly US —used as a polite way of asking someone to repeat something Excuse me? I didn't hear the last part of what you were saying.
8 informal —often used in an annoyed way when someone has suggested that a person has done something wrong and the person does not agree "You were supposed to be home an hour ago." "Well, excuse me! I had to fix a flat tire."