cusˈtomary adjective

1. According to use and habit
2. Usual
3. Holding or held by custom
4. Copyhold

(also custumary /kusˈtūm-ər-i/) a body or book of the customs of a manor, etc or the ritual of a religious community

cusˈtomed adjective

1. Accustomed
2. Usual

cusˈtomer noun

1. A person who usually frequents a certain place of business
2. A buyer
3. A person, usually qualified in some way as in a tricky customer (informal)

cus'tomizable or cus'tomisable adjective

customīzāˈtion or customīsāˈtion noun

cusˈtomize or cusˈtomise transitive verb

To make in such a way as to suit specified individual requirements

cusˈtomized or cusˈtomised adjective

cusˈtom-built or cusˈtom-made adjective

Built or made to a customer's order or specification

customs house or (esp N American) custom house noun

The place, esp at a port, where customs or duties on exports and imports are collected

cusˈtom-shrunk adjective (Shakespeare)

Having fewer customers than formerly

customs union noun

A group of states having free trade between themselves, and a common tariff policy toward non-member states