jointer

One that joints.

Any of various tools used to construct or finish joints, especially:

The largest kind of plane used by a joiner.

Any of various tools used to construct or finish joints, especially:

A pointing-trowel.

Any of various tools used to construct or finish joints, especially:

A bent piece of iron for riveting two stones together.

An equivalent machine, notably used to produce a flat surface on boards.

A part of some ploughs, near the coulter, that helps control the flow of stubble and trash, better ensuring that it gets buried when the moldboard turns the soil over.