1. able to withstand exposure to weather without damage

1. to make something able to withstand exposure to weather

Examples

• The weatherproof jacket kept me dry during the storm.
• We need weatherproof materials for the outdoor deck.
• The tent is completely weatherproof and suitable for camping.
• They weatherproofed the wooden fence with a special coating.
• The weatherproof camera can be used in rain or snow.
• We should weatherproof the windows before winter arrives.
• The weatherproof cover protects the grill year-round.