Longman Dictionary of Contemporary English homepage

proof

3 verb
     
Related topics: Clothes and Fashion
proof3 [transitive] British English
1DC [usually passive] to treat a material with a substance in order to protect it against water, oil etc
proof something against something
climbing gear proofed against water
2 to proofread something
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary