1. rising and falling rhythmically
2. very crowded with people
Usage: informal

1. the action of lifting, throwing, or moving something with great effort
2. the action of rising and falling rhythmically

Examples

• The ship rocked on the heaving ocean waves.
• Her chest was heaving after the long run.
• The nightclub was heaving with dancers.
• The beach was heaving with tourists during summer.
• The heaving of the heavy boxes took all morning.
• We could see the gentle heaving of his chest as he slept.
• The heaving motion of the boat made her seasick.