collinear vs linear

collinear and linear both are adjectives.

Word	Noun	Adjective	Verb	Adverb
collinear	No	Yes	No	No
linear	No	Yes	No	No

collinear (adjective)	linear (adjective)
lying on the same line	of or in or along or relating to a line; involving or having a single dimension
	designating or involving an equation whose terms are of the first degree
	of a circuit or device having an output that is proportional to the input
	measured lengthwise
	(of a leaf shape) long and narrow