delicacy vs tact

delicacy and tact both are nouns.

Word	Noun	Adjective	Verb	Adverb
delicacy	Yes	No	No	No
tact	Yes	No	No	No

As nouns, tact is a hypernym of delicacy; that is, tact is a word with a broader meaning than delicacy:

Other hypernyms of delicacy include tactfulness.

delicacy (noun)	tact (noun)
the quality of being beautiful and delicate in appearance	consideration in dealing with others and avoiding giving offense
subtly skillful handling of a situation
lack of physical strength
slenderness
lightness in movement or manner
refined taste; tact
something considered choice to eat