statement of the main facts or points
line(s) showing the shape or outer edge of sth
draw or mark the outer edge of sth
give a short general description of sth
"sketch the outline of the book"
"outline his ideas"
"draft a speech"
Mountainous cumulus against which the outlines of buildings took on a curious clarity.
出自： R. Rendell
Melanie..snipped layers into the hair around her face to soften the outline.