white feather vs symbolization

white feather and symbolization both are nouns.

Word	Noun	Adjective	Verb	Adverb
white feather	Yes	No	No	No
symbolization	Yes	No	No	No

As nouns, symbolization is a hypernym of white feather; that is, symbolization is a word with a broader meaning than white feather:

white feather: a symbol of cowardice
symbolization: something visible that by association or convention represents something else that is invisible

Other hypernyms of white feather include symbol, symbolic representation, symbolisation.

white feather (noun)	symbolization (noun)
a symbol of cowardice	the practice of investing things with symbolic meaning
	something visible that by association or convention represents something else that is invisible
	the use of symbols to convey meaning