1. defend against attack or criticism

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;e.g. He stood up for his friend
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;She stuck up for the teacher who was accused of harassing the student

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Synonym: stand up

2. rob at gunpoint or by means of some other threat

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Synonym: hold up