1. a watch or guard duty during the middle of the night, typically from midnight to 4 AM
Usage: nautical; military

Examples

• The sailor was assigned to midwatch duty on the destroyer.
• During midwatch, the crew maintained vigilant lookout for enemy vessels.
• He struggled to stay alert during his midwatch shift.
• The captain made rounds during midwatch to check on the crew.
• Midwatch was always the most challenging duty for new recruits.
• The officer of the deck supervised operations during midwatch.