crane vs lifting device

crane and lifting device both are nouns.

Word	Noun	Adjective	Verb	Adverb
crane	Yes	No	Yes	No
lifting device	Yes	No	No	No

As nouns, lifting device is a hypernym of crane; that is, lifting device is a word with a broader meaning than crane:

crane: lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis
lifting device: a device for lifting heavy loads

crane (noun)	lifting device (noun)
large long-necked wading bird of marshes and plains in many parts of the world	a device for lifting heavy loads
lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis

crane (verb)	lifting device (verb)
stretch (the neck) so as to see better