Joinery grooves have more names than you can shake a stick at. Basically, all joinery grooves are dados of one kind or another, and if they are cut with the grain they are also called "ploughs" and if they are on the end or the edge, they are also called rabbets. Here are 12 fundamental types of joinery grooves with a table, below the diagram, listing all of the names of the various grooves.

direction	type	#	names
with the grain, along the edge	blind	1	blind dado, blind plough, blind edge rabbet
	half blind	2	half blind dado, half blind plough, half blind edge rabbet
	through	3	through dado, through plough, through edge rabbet
with the grain, in the middle	blind	4	blind dado, blind plough
	half blind	5	half blind dado, half blind plough
	through	6	through dado, through plough
across the grain, in the middle	blind	7	blind dado
	half blind	8	half blind dado
	through	9	through dado
across the grain, along the end	blind	10	blind dado, blind end rabbet
	half blind	11	half blind dado, half blind end rabbet
	through	12	through dado, through end rabbet