client

noun
  1. A person or organization that uses the services or advice of a professional person or organization. noun
    The lawyer met with her client to discuss the case.
    The advertising agency secured a new client in the automotive industry.
  2. A computer or software application that accesses a service made available by a server. noun
    The email client on my computer allows me to manage multiple accounts.
    The game requires the installation of a client to connect to the server.
  3. A person who is receiving social or medical services. noun
    The social worker visited her client to ensure they were receiving adequate support.
    The clinic provides a range of services to its clients, including counseling and medical care.