1. Having some official authority or sanction

See also: official

• telephone extension
• telephone interview
• telephone jack
• telephone kiosk
• telephone line
• telephone message
• telephone number
• telephone operator
• telephone order
• telephone plug
• telephone pole
• telephone receiver
• telephone service
• telephone set
• telephone system
• telephone unit
• telephone wire
• telephoner
• telephonic
• telephonically
• telephonist
• telephony
• telephoto
• telephoto lens
• telephotograph