client

nouns

a person who seeks the advice of a lawyer
is a member of
the responsibility of a lawyer to act in the best interests of the client
domain category
the collection of rules imposed by authority
"civilization presupposes respect for the law"; "the great problem for jurisprudence to allow freedom while enforcing order"
is a type of (narrower)
a person requiring professional services
"a typical case was the suburban housewife described by a marriage counselor"
someone who pays for goods or services
(computer science) any computer that is hooked up to a computer network