habit

[1]	custom , wont , routine , practice , convention , policy , pattern , usage , mode , rule , wont , praxis
[2]	tendency , use , disposition , manner , practice , way , custom , inclination , bent , predisposition , second nature , frame of mind , attitude , penchant , propensity , proclivity , addiction , compulsion
[3]	attire , clothing , dress , apparel , clothes , garb , costume , garments , vestments , uniform , raiment , livery , regalia , habiliment(s) , (Colloq) gear
[4]	riding habit
[5]	substance abuse , drug abuse