From WordNet (r) 3.0 (2006):
hex
adj 1: of or pertaining to a number system having 16 as its base
[syn: hexadecimal, hex]
n 1: an evil spell; "a witch put a curse on his whole family";
"he put the whammy on me" [syn: hex, jinx, curse,
whammy]
v 1: cast a spell over someone or something; put a hex on
someone or something [syn: hex, bewitch, glamour,
witch, enchant, jinx]