refinement vs significance

refinement and significance both are nouns.

Word	Noun	Adjective	Verb	Adverb
refinement	Yes	No	No	No
significance	Yes	No	No	No

As nouns, significance is a hypernym of refinement; that is, significance is a word with a broader meaning than refinement:

Other hypernyms of refinement include import, meaning, signification.

refinement (noun)	significance (noun)
the quality of excellence in thought and manners and taste	the quality of being significant
a subtle difference in meaning or opinion or attitude	a meaning that is not expressly stated but can be inferred
the result of improving something	the message that is intended or expressed or signified
the process of removing impurities (as from oil or metals or sugar etc.)
a highly developed state of perfection; having a flawless or impeccable quality