1. to lower one's head or body quickly, usually to avoid something
2. to avoid or evade something, especially a responsibility or difficult situation
Usage: informal
3. to push someone briefly under water

Examples

• She ducked under the low doorway to enter the cottage.
• He ducked to avoid the flying ball.
• The politician ducked the reporter's tough question.
• They ducked their heads as the helicopter flew overhead.
• She ducked out of the meeting early to avoid the confrontation.
• The children ducked each other in the swimming pool.