prune vs pollard

prune and pollard both are nouns.

Word	Noun	Adjective	Verb	Adverb
prune	Yes	No	Yes	No
pollard	Yes	No	Yes	No

As verbs, pollard is a hyponym of prune; that is, pollard is a word with a more specific, narrower meaning than prune:

Other hyponyms of prune include shear, poll, pinch, top, disbud.

prune (noun)	pollard (noun)
dried plum	a usually horned animal that has either shed its horns or had them removed
	a tree with limbs cut back to promote a more bushy growth of foliage

prune (verb)	pollard (verb)
weed out unwanted or unnecessary things	convert into a pollard
cultivate, tend, and cut back the growth of