1. a canvas bag carried over one shoulder, especially by soldiers or hikers

Examples

• The soldier packed his rations in his haversack.
• She slung her haversack over her shoulder before starting the hike.
• The old canvas haversack had served him well on many camping trips.
• He rummaged through his haversack looking for the map.
• The military surplus store sold authentic World War II haversacks.
• Her haversack contained water, snacks, and a first aid kit.