plural
proofs
plural
proofs
Learner's definition of PROOF
1
[noncount]
:
something which shows that something else is true or correct

The document was proof that her story was true.

He claims that he was home when the murder was committed, but he has no proof.

The photograph is proof positive [=definite proof] that the accident happened the way he described.

I'm living proof that success is possible. [=my success shows that other people can succeed too]
—
often + of

The evidence gave proof of her statement. [=the evidence proved her statement]

Do you have any proof of identity?

Keep the receipt as proof of purchase. [=evidence showing/proving that you bought something]
2
[count]
a
:
an act or process of showing that something is true
b
mathematics
:
a test which shows that a calculation is correct
3
[count]
technical
:
a copy of something that is going to be printed which is examined and used to make corrections before the final printing is done
—
usually plural
4
[noncount]
:
a measurement of how much alcohol is in an alcoholic drink
the proof is in the pudding
—
see pudding
^{2}
proof
/ˈpruːf/
adjective
^{2}
proof
/ˈpruːf/
adjective
Learner's definition of PROOF
formal
:
designed or made to prevent or protect against something harmful
—
usually used in combination
^{3}
proof
/ˈpruːf/
verb
proofs;
proofed;
proofing
proofs;
proofed;
proofing
Learner's definition of PROOF
[+ object]