A rabbet is a recess cut out of the end or edge of a board. When a piece is butted into a rabbet, it is called a rabbet joint.

 

Corner dado and rabbet joint

Double corner rabbet joint

Double locked rabbet joint

Dovetail rabbet joint

Lock miter joint

Locked rabbet joint

Mitered rabbet joint

Rabbet joint

Stopped dado and rabbet joint

Stopped rabbet joint