outline vs lineation

outline and lineation both are nouns.

Word	Noun	Adjective	Verb	Adverb
outline	Yes	No	Yes	No
lineation	Yes	No	No	No

As nouns, outline and lineation are synonyms defined as:

outline (noun)	lineation (noun)
a schematic or preliminary plan	the act of marking or outlining with lines
a sketchy summary of the main points of an argument or theory	the line that appears to bound an object
the line that appears to bound an object

outline (verb)	lineation (verb)
describe roughly or briefly or give the main points or summary of
trace the shape of
draw up an outline or sketch for something