Technically : a vote blanc is when there is a blank white piece of paper in the envelope, OR an empty envelope. It is Case 11 in the enumerated "non expressed" vote counting methodology. Cases 1 to 10 are different categories of null : There was one in my polling place where the voter had spat on his Macron ballot.

_{It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II}