Expressing anger or displeasure:
* The teacher scowled at the students who were talking during the test.
* He scowled at the pile of dirty dishes in the sink.
* The grumpy old man scowled at everyone who walked by his house.
Expressing disapproval or seriousness:
* The judge scowled at the defendant as he delivered the verdict.
* The doctor scowled at the x-ray, his brow furrowed with concern.
* The general scowled as he read the reports of the failed mission.
Describing a facial expression:
* Her face was a mask of scowls as she listened to the news.
* He had a perpetual scowl etched onto his face.
* The scowl on his face deepened as he realized the truth.
Figurative language:
* The dark clouds in the sky seemed to scowl at the approaching storm.
* The abandoned house stood with a scowl of neglect and decay.
Remember, "scowl" is often used to describe a frown or a look of displeasure. It can also be used figuratively to describe something that appears dark, threatening, or disapproving.