Definition of "stick up" in English

Verb

1. To rob at gunpoint.

   • I think they intend to stick up the bank.

2. To be prominent; to point upwards.

   • No matter how much I brush it, my hair always sticks up.

3. To speak or act in defence (of).

   • Don't let them push you around, stick up for yourself.

4. To defy, to confront, to stand up to.

5. To maintain a commitment (as, to a proposition or role)

6. Used other than figuratively or idiomatically: see stick,‎ up. To put or post up by sticking.

   • Stick up the postcard with a bit of tape.