IPA: /ˈdʒɔɪntər/
KK: /ˈdʒɔɪntər/
A tool or machine used to create joints in materials, especially wood, by cutting grooves or shaping edges.
The carpenter used a jointer to smooth the edges of the wooden boards before assembling them.
Jointer → The word originates from the Old French *jointer*, meaning to join or connect. It refers to a tool or person that joins pieces of wood together.
Think of someone or something that 'joins' pieces together — that's what a jointer does.