-proofs, -proofing, -proofed
1) COMB in ADJ -proof combines with nouns and verbs to form adjectives which indicate that something cannot be damaged or badly affected by the thing or action mentioned.

...a bomb-proof aircraft...

In a large microwave-proof dish, melt butter for 20 seconds.

...tamper-proof medicine bottles.

2) COMB in VB -proof combines with nouns to form verbs which refer to protecting something against being damaged or badly affected by the thing mentioned.

[V n] ...home energy efficiency grants towards the cost of draught-proofing your home.

[V-ed] ...inflation-proofed pensions.

3) See also , childproof, , fireproof, , soundproof, , weatherproof

English dictionary. 2008.

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