cargo helicopter vs eggbeater

cargo helicopter and eggbeater both are nouns.

Word	Noun	Adjective	Verb	Adverb
cargo helicopter	Yes	No	No	No
eggbeater	Yes	No	No	No

As nouns, eggbeater is a hypernym of cargo helicopter; that is, eggbeater is a word with a broader meaning than cargo helicopter:

cargo helicopter: a helicopter that carries cargo
eggbeater: an aircraft without wings that obtains its lift from the rotation of overhead blades

Other hypernyms of cargo helicopter include chopper, helicopter, whirlybird.

cargo helicopter (noun)	eggbeater (noun)
a helicopter that carries cargo	a mixer for beating eggs or whipping cream
	an aircraft without wings that obtains its lift from the rotation of overhead blades