router

UK: /ˈraʊtə^r/, /ˈruːtə^r/

US: (rou′tər for 1; ro̅o̅′tər, rou′- for 2)

WordReference Random House Unabridged Dictionary of American English © 2025

rout•er¹  (rou′tər), n. 

1. Building any of various tools or machines for routing, hollowing out, or furrowing.
2. Building Also called rout′er plane′. [Carpentry.] a plane for cutting interior angles, as at the bottom of a groove. See illus. under plane ².
3. Building a machine or tool for cutting into or below a main surface, as of a die or engraving plate.

v.t. 

4. Building to cut with a router.

• rout² + -er¹ 1840–50

rout•er²  (ro̅o̅′tər, rou′-), n. 

1. a person or thing that routes.

• route + -er¹ 1900–05

Collins Concise English Dictionary © HarperCollins Publishers::

router / ˈraʊtə/ noun

1. any of various tools or machines for hollowing out, cutting grooves, etc