DictionaryjoinerBoard-edge preparation tool
noun

joiner

A tool or machine for preparing the edges of boards.

The joiner smooths each board's edge before the boards are glued.

Etymology

The tool name identifies equipment that prepares a join. It makes board edges straight or suitable so adjacent pieces can fit together accurately.

More examples

  • She uses a joiner to straighten the edges of the oak boards.
  • Sharp blades help the joiner produce clean, even edges.
  • The workshop has two joiners for preparing lumber.

Forms

joiner · joiners

joint noun — A place where two pieces are connected.

Similar words

jointer
The more usual term for a board-edge preparation machine.
planer
Usually smooths board surfaces or reduces thickness rather than straightening edges.