Custom

Custom may refer to:

Customs (tax), a tariff on imported or exported goods
Custom (law) or customary law: Laws and regulations established by common practice.
Norm (sociology), a rule that is socially enforced
Convention (norm), a set of agreed, stipulated or generally accepted rules, norms, standards or criteria, often taking the form of a custom
Customization, anything made or modified to personal taste.
Custom (guitar), a model of guitar made by Fender
Custom (musician), stage name for New York based musician Duane Lavold
Patronage, as in I'll take my custom (i.e. "business") elsewhere!