Silver Star vs palm

Silver Star and palm both are nouns.

Word	Noun	Adjective	Verb	Adverb
Silver Star	Yes	No	No	No
palm	Yes	No	Yes	No

As nouns, palm is a hypernym of Silver Star; that is, palm is a word with a broader meaning than Silver Star:

Other hypernyms of Silver Star include decoration, laurel wreath, medal, medallion, ribbon.

Silver Star (noun)	palm (noun)
a United States military decoration for gallantry in action	the inner surface of the hand from the wrist to the base of the fingers
	an award for winning a championship or commemorating some other event
	any plant of the family Palmae having an unbranched trunk crowned by large pinnate or palmate leaves
	a linear unit based on the length or width of the human hand

Silver Star (verb)	palm (verb)
	touch, lift, or hold with the hands