Meaning : Rob at gunpoint or by means of some other threat.
Synonyms : hold up
Meaning : Defend against attack or criticism.
Example :
He stood up for his friend.
She stuck up for the teacher who was accused of harassing the student.
Synonyms : stand up
Stick up ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Stick up ka matlab kya hota hai?