router vs power tool

router and power tool both are nouns.

Word	Noun	Adjective	Verb	Adverb
router	Yes	No	No	No
power tool	Yes	No	No	No

As nouns, power tool is a hypernym of router; that is, power tool is a word with a broader meaning than router:

router: a power tool with a shaped cutter; used in carpentry for cutting grooves
power tool: a tool driven by a motor

router (noun)	power tool (noun)
(computer science) a device that forwards data packets between computer networks	a tool driven by a motor
a worker who routes shipments for distribution and delivery
a power tool with a shaped cutter; used in carpentry for cutting grooves