outline
US /ˈaʊt.laɪn/
UK /ˈaʊt.laɪn/

1.
2.
the line by which a body or figure is defined or bounded
:
•
The mountain's sharp outline was visible against the sky.
•
She traced the outline of the leaf with her finger.
1.
2.
give a general description of (something), indicating only the most important features without going into detail
:
•
The speaker outlined the main points of the proposal.
•
The report outlined the challenges facing the industry.