a habitual practice; the usual way of acting in given circumstances.

habits or usages collectively; convention.

a practice so long established that it has the force of law.

such practices collectively.

Sociology . a group pattern of habitual activity usually transmitted from one generation to another.

toll; duty.

customs,

( used with a singular or plural verb ) duties imposed by law on imported or, less commonly, exported goods.

( used with a singular verb ) the government department that collects these duties.

( used with a singular verb ) the section of an airport, station, etc., where baggage is checked for contraband and for goods subject to duty.

regular patronage of a particular shop, restaurant, etc.

the customers or patrons of a business firm, collectively.

the aggregate of customers.

(in medieval Europe) a customary tax, tribute, or service owed by peasants to their lord.

made specially for individual customers

custom shoes.

dealing in things so made, or doing work to order

a custom tailor.

noun

departure , deviation , difference , divergence , irregularity

noun

addiction , beaten path , characteristic , consuetude , daily grind , fashion , form , grind * , groove , habit , habitude , hang-up * , into * , manner , matter of course , mode , observance , practice , praxis , precedent , procedure , proprieties , routine , rule , second nature * , shot , swim , thing , trick , usage , use , way , wontnotes:costume and custom were actually two forms of the same latin root consuetudinem \'habit , custom , \' with costume first meaning \'manners and customs belonging to a particular time and place\' , attitude , canon , ceremony , character , convention , conventionalism , design , dictates , established way , etiquette , folkways , formality , inheritence , method , mold , mores , observation , pattern , performance , policy , precept , rite , style , system , taste , type , unwritten law , unwritten rule , vogue , waynotes:costume and custom were actually two forms of the same latin root consuetudinem \'habit , usance , wont , business , trade , traffic , conventionality , costume , duty , habituation , impost , law , methods , more , patronage , prescription , protocol , rite of passage , ritual , rubric , tailor-made , toll , tribute

adjective

custom-built , customized , custom-made , made-to-order , tailor-made