noun
plural -lines
[count] :a drawing or picture that shows only the shape of an object - often + of
[noncount] :a style of drawing in which only the outer edges of an object are shown
[count] :a line that is drawn around the edges of something
a written list or description of only the most important parts of an essay, speech, plan, etc. [count]
verb
-lines; -lined; -lining
[+ obj] to draw a line around the edges of (something) - usually used as (be) outlined
to list or describe only the most important parts of (an essay, speech, plan, etc.) :to give an outline of (something)