device vs tactical maneuver

device and tactical maneuver both are nouns.

Word	Noun	Adjective	Verb	Adverb
device	Yes	No	No	No
tactical maneuver	Yes	No	No	No

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

Other hypernyms of device include maneuver, manoeuvre, tactical manoeuvre.

device (noun)	tactical maneuver (noun)
any clever maneuver	a move made to gain a tactical end
an instrumentality invented for a particular purpose
an emblematic design (especially in heraldry)
any ornamental pattern or design (as in embroidery)
something in an artistic work designed to achieve a particular effect