proof ( proofs plural )
1 n-var Proof is a fact, argument, or piece of evidence which shows that something is definitely true or definitely exists.
oft N of n, N that
You have to have proof of residence in the state of Texas, such as a Texas ID card..., This is not necessarily proof that he is wrong...
2 n-count In publishing, the proofsof a book, magazine, or article are a first copy of it that is printed so that mistakes can be corrected before more copies are printed and published.
usu pl, oft N of n
I'm correcting the proofs of the Spanish edition right now.
Proof is also an adjective., adj ADJ n
...an uncorrected proof copy of the book.
3 adj Proof is used after a number of degrees or a percentage, when indicating the strength of a strong alcoholic drink such as whisky.
...a glass of Wild Turkey bourbon: 101 degrees proof.
the proof of the pudding is in the eating →
bullet-proof , bulletproof
Something that is bullet-proof is made of a strong material that bullets cannot pass through. adj
...bullet-proof glass., ...a bullet-proof vest.
damp-proof course ( damp-proof courses plural ) A damp-proof course is the same as a damp course. n-count
-proof ( -proofs 3rd person present) ( -proofing present participle) ( -proofed past tense & past participle )
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.
2 comb in verb -proof combines with nouns to form verbs which refer to protecting something against being damaged or badly affected by the thing mentioned.
...home energy efficiency grants towards the cost of draught-proofing your home. V n
...inflation-proofed pensions. V-ed