SHAPE vs high command

SHAPE and high command both are nouns.

Word	Noun	Adjective	Verb	Adverb
SHAPE	Yes	No	No	No
high command	Yes	No	No	No

As nouns, high command is a hypernym of SHAPE; that is, high command is a word with a broader meaning than SHAPE:

SHAPE: the supreme headquarters that advises NATO on military matters and oversees all aspects of the Allied Command Europe
high command: the highest leaders in an organization (e.g. the commander-in-chief and senior officers of the military)

Other hypernyms of SHAPE include supreme headquarters.

SHAPE (noun)	high command (noun)
the supreme headquarters that advises NATO on military matters and oversees all aspects of the Allied Command Europe	the highest leaders in an organization (e.g. the commander-in-chief and senior officers of the military)