skyhook vs eggbeater

skyhook and eggbeater both are nouns.

Word	Noun	Adjective	Verb	Adverb
skyhook	Yes	No	No	No
eggbeater	Yes	No	No	No

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

skyhook: helicopter carrying a reel of steel cable that can be used to lift and transport heavy objects
eggbeater: an aircraft without wings that obtains its lift from the rotation of overhead blades

Other hypernyms of skyhook include chopper, helicopter, whirlybird.

skyhook (noun)	eggbeater (noun)
a hook that is imagined to be suspended from the sky	a mixer for beating eggs or whipping cream
helicopter carrying a reel of steel cable that can be used to lift and transport heavy objects	an aircraft without wings that obtains its lift from the rotation of overhead blades