pound up vs restrain

pound up and restrain both are verbs.

Word	Noun	Adjective	Verb	Adverb
pound up	No	No	Yes	No
restrain	No	No	Yes	No

As verbs, restrain is a hypernym of pound up; that is, restrain is a word with a broader meaning than pound up:

pound up: shut up or confine in any enclosure or within any bounds or limits
restrain: to close within bounds, or otherwise limit or deprive of free movement

Other hypernyms of pound up include confine, constrain, hold.

pound up (verb)	restrain (verb)
shut up or confine in any enclosure or within any bounds or limits	prevent the action or expression of
	to close within bounds, or otherwise limit or deprive of free movement
	restrict (someone or something) so as to make free movement difficult
	prevent (someone or something) from doing something