hold up vs hold water

hold up and hold water both are verbs.

Word	Noun	Adjective	Verb	Adverb
hold up	No	No	Yes	No
hold water	No	No	Yes	No

As verbs, hold water is a hyponym of hold up; that is, hold water is a word with a more specific, narrower meaning than hold up:

Other hyponyms of hold up include hold up, stand up, perennate, live out.

As verbs, hold up and hold water are synonyms defined as:

Other synonyms of hold up include stand up.

hold up (verb)	hold water (verb)
cause to be slowed down or delayed	resist or withstand wear, criticism, etc.
be the physical support of; carry the weight of
hold up something as an example; hold up one's achievements for admiration
rob at gunpoint or by means of some other threat
continue to live and avoid dying
resist or withstand wear, criticism, etc.
resist or confront with resistance