1. to make or become dark or darker
2. to make or become gloomy, sad, or angry
Usage: figurative

Examples

• Storm clouds began to darken the sky.
• She pulled the curtains to darken the room.
• His face darkened with anger.
• The wood will darken with age.
• Bad news darkened her mood.
• The theater darkened as the play began.
• His expression darkened when he heard the criticism.