custom

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A traditional practice or usual way of doing something followed by a social group or people.
• noun The tradition or body of such practices.
• noun A habitual practice of a person: synonym: habit.
• noun Habitual manner or practice.
• noun Law A common tradition or usage so long established that it has the force or validity of law.
• noun Habitual patronage, as of a store.
• noun Duties or taxes imposed on imported and, less commonly, exported goods.
• noun The governmental agency authorized to collect these duties.
• noun The procedure for inspecting goods and baggage entering a country.
• noun Tribute, service, or rent paid by a feudal tenant to a lord.
• adjective Made to order.
• adjective Specializing in the making or selling of made-to-order goods.

from The Century Dictionary.

• noun The common use or practice, either of an individual or of a community, but especially of the latter; habitual repetition of the same act or procedure; established manner or way.
• noun In law, collectively, the settled habitudes of a community, such as are and have been for an indefinite time past generally recognized in it as the standards of what is just and right; ancient and general usage having the force of law.
• noun The buying of goods or supplying of one's current needs; the practice of having recourse to some particular place, shop, manufactory, house of entertainment, etc., for the purpose of purchasing or giving orders.
• noun Toll, tax, or duty; in the plural, specifically, the duties imposed by law on merchandise imported or exported.
• noun In old French law, a system of customary law common to a whole province.
• noun Duty, Impost, etc. See tax, n.
• Done or made for individual customers, or to order: as, custom work; custom shoes.
• Engaged in doing custom work: as, a custom tailor.
• To make familiar; accustom.
• To give custom to; supply with customers.
• To pay duty for at the custom-house.
• To be accustomed; be wont.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb obsolete To make familiar; to accustom.
• transitive verb obsolete To supply with customers.
• intransitive verb obsolete To have a custom.
• transitive verb obsolete To pay the customs of.
• noun The customary toll, tax, or tribute.
• noun Duties or tolls imposed by law on commodities, imported or exported.
• noun Frequent repetition of the same act; way of acting common to many; ordinary manner; habitual practice; usage; method of doing or living.
• noun Habitual buying of goods; practice of frequenting, as a shop, manufactory, etc., for making purchases or giving orders; business support.
• noun (Law) Long-established practice, considered as unwritten law, and resting for authority on long consent; usage. See Usage, and Prescription.
• noun obsolete Familiar aquaintance; familiarity.
• noun a system or code of customs by which affairs of commerce are regulated.
• noun those which extend over a state or kingdom.
• noun those which are limited to a city or district; as, the customs of London.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Frequent repetition of the same behavior; way of behavior common to many; ordinary manner; habitual practice; usage; method of doing, living or behaving.
• noun Habitual buying of goods; practice of frequenting, as a shop, manufactory, etc., for making purchases or giving orders; business support.
• noun law Long-established practice, considered as unwritten law, and resting for authority on long consent; usage. See Usage, and Prescription.
• noun obsolete Familiar acquaintance; familiarity.
• noun The customary toll, tax, or tribute.
• noun created under particular specifications, specialized, unique, custom-made
• adjective made in a different way from usual, specially to fit one's needs
• verb obsolete (transitive) To make familiar; to accustom.
• verb obsolete (transitive) To supply with customers.
• verb obsolete (transitive) To pay the customs of.