instrumentality vs social unit

instrumentality and social unit both are nouns.

Word	Noun	Adjective	Verb	Adverb
instrumentality	Yes	No	No	No
social unit	Yes	No	No	No

As nouns, social unit is a hypernym of instrumentality; that is, social unit is a word with a broader meaning than instrumentality:

instrumentality: a subsidiary organ of government created for a special purpose
social unit: an organization regarded as part of a larger social group

Other hypernyms of instrumentality include unit.

instrumentality (noun)	social unit (noun)
an artifact (that is instrumental in accomplishing some end) for accomplishing some end	an organization regarded as part of a larger social group
the quality of being instrumental for some purpose
a subsidiary organ of government created for a special purpose