habit
//ˈhæbɪt//
Noun
habitSingular
habitsPlural
1
A regular pattern of behavior that is repeated frequently and tends to occur unconsciously or automatically
She has a habit of biting her nails when she's nervous.
2
A long, loose garment worn by members of a religious order or by certain officials
The monk wore a simple brown habit.
3
An addiction to a drug or substance
He struggled to overcome his drug habit.