habit
n 1: an established custom; "it was their habit to dine at 7
every evening" [syn: {wont}]
2: a pattern of behavior acquired through frequent repetition;
"she had a habit twirling the ends of her hair"; "long use
had hardened him to it" [syn: {use}, {wont}]
3: a distinctive attire (as the costume of a religious order)
4: excessive use of drugs [syn: {substance abuse}, {drug abuse}]
v : put a habit on