1. (

• waterproof ,

) any fabric impervious to water ;

2. (

• raincoat ,
• waterproof ,

) a water-resistant coat ;

1. (

• waterproof

) make watertight; "Waterproof the coat" ;

1. (

• rainproof ,
• waterproof ,
• waterproofed

) not permitting the passage of water ;