a number usually of 3 digits assigned to a telephone area as in the United States and Canada
a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
a part of an animal that has a special function or is supplied by a given artery or nerve
a set of rules or principles or laws (especially written ones)
a particular environment or walk of life
a part of a structure having some specific characteristic or function
the extent of a 2-dimensional surface enclosed within a boundary
a coding system used for transmitting messages requiring brevity or secrecy
