garnish vs ornamentation

garnish and ornamentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
garnish	Yes	No	Yes	No
ornamentation	Yes	No	No	No

As nouns, ornamentation is a hypernym of garnish; that is, ornamentation is a word with a broader meaning than garnish:

Other hypernyms of garnish include decoration, ornament.

As nouns, ornamentation is a hypernym of garnish; that is, ornamentation is a word with a broader meaning than garnish:

garnish: something (such as parsley) added to a dish for flavor or decoration
ornamentation: something used to beautify

Other hypernyms of garnish include decoration, ornament.

garnish (noun)	ornamentation (noun)
any decoration added as a trimming or adornment	the act of adding extraneous decorations to something
something (such as parsley) added to a dish for flavor or decoration	something used to beautify
	the state of being ornamented

garnish (verb)	ornamentation (verb)
decorate (food), as with parsley or other ornamental foods
take a debtor's wages on legal orders, such as for child support