sinopia vs ocher

sinopia and ocher both are nouns.

Word	Noun	Adjective	Verb	Adverb
sinopia	Yes	No	No	No
ocher	Yes	Yes	No	No

As nouns, ocher is a hypernym of sinopia; that is, ocher is a word with a broader meaning than sinopia:

sinopia: a red ocher formerly used as a pigment
ocher: any of various earths containing silica and alumina and ferric oxide; used as a pigment

Other hypernyms of sinopia include ochre.

sinopia (noun)	ocher (noun)
a red ocher formerly used as a pigment	a moderate yellow-orange to orange color
	any of various earths containing silica and alumina and ferric oxide; used as a pigment

sinopia (adjective)	ocher (adjective)
	of a moderate orange-yellow color