Definitions
1.nounThe wrinkling of the brows or face in frowning; the expression of displeasure, sullenness, or discontent in the countenance; an angry frown.
2.noun(by extension) Gloom; dark or threatening aspect.
3.verbTo wrinkle the brows, as in frowning or displeasure; to put on a frowning look; to look sour, sullen, severe, or angry.
4.verb(by extension) To look gloomy, dark, or threatening; to lower.
5.verbTo look at or repel with a scowl or a frown."to scowl a rival into submission"
6.verbTo express by a scowl."to scowl defiance"