# planer

Pronunciation: US say "PLAY-nur" /ˈpɫeɪ̯n.ɚ/; UK say "PLAY-nuh" /ˈpleɪ̯n.ə/

## Noun

1. A tool that smooths a surface or makes one face of a workpiece parallel to its bed.
   - Simple: A tool that shaves wood smooth or makes one side flat and level.
   - _Carpenters ran the rough plank over the planer to true up its surface._
   - _The workshop kept two planers for shaping cabinet panels._
2. A person employed to operate a planer, the woodworking tool that smooths wood or makes one face of it parallel to the tool's bed.
   - Simple: A worker whose job is using a planer to make wood smooth.
   - _The mill employed a skilled planer to prepare each plank by hand._
   - _As a planer, he could judge a board's grain at a glance._
3. A large machine tool in which the workpiece moves back and forth on a reciprocating bed beneath a single-point cutting tool, used especially to make large, accurate flat surfaces.
   - Simple: A large machine that slides a metal part back and forth under a cutting tool to make big flat surfaces.
   - _Each slow pass of the planer shaved a thin layer from the cast-iron bed._
   - _The old planer reciprocated steadily, drawing the workpiece under the fixed cutter._

## Adjective

4. Comparative form of plane. Rare; flatter is the usual word. — comparative form of plane: more plane
   - Simple: Comparative form of plane. This is rare, and most people say flatter.

## Noun

5. A wooden block used for forcing the type down in a printing form and making its surface even. *(archaic)*
   - Simple: A wooden block used to press metal type down flat in a printing frame.
   - _Before locking the form, the compositor ran the planer across every line of type._
   - _A few taps on the planer seated the loose letters evenly._

## Origin

From Middle English planer or planere, equivalent to "plane" combined with the suffix "-er".

Source: DictionaryAI, https://dictionaryai.com/define/planer (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).