1. to make or become lighter in weight
2. to make or become brighter or less dark
3. to make or become less serious, sad, or troubled

Examples

• She decided to lighten her backpack by removing unnecessary items.
• The sky began to lighten as dawn approached.
• His joke helped lighten the mood during the tense meeting.
• The judge agreed to lighten the sentence due to the defendant’s cooperation.
• Adding white paint will lighten the color of the walls.
• The burden of responsibility seemed to lighten after sharing it with the team.
• Her hair naturally lightens in the summer sun.