How to spell Proof

The mistake made with the spelling of proof is to replace the double "O" with a "U". To make sure you don't do this, think of the following:

The children wanted proof the zoo had no unicorn.

prOOf

PROOF

How to remember to spell Proof. The mistake made with the spelling of proof is to replace the double "O" with a "U". To make sure you don't do this, think of the following: The children wanted proof the zoo had no unicorn.