or -- logical or, used in conditions
if (a or b) ...
while (a or b) ...
Used in conditions (e.g within if or while) to join two expressions. Returns true, if either its left or its right or both arguments are true; returns false otherwise.
input "Please enter a number"
if (a>9 or a<1) print "a is not between 1 and 9"
and, not, xor, eor