1. the air that goes into and out of your lungs when you breathe
2. the ability to breathe easily
3. a single act of breathing air in or out

Examples

• I could see my breath in the cold air.
• She was out of breath after running up the stairs.
• Take a deep breath and try to relax.
• The doctor listened to his breath with a stethoscope.
• There wasn’t a breath of wind that day.
• He held his breath underwater for thirty seconds.
• The runner caught her breath after the race.