gateway

noun

• an opening that can be closed by a gate:we turned into a gateway leading to a small cottage
• a frame or arch built around or over a gate:a big house with a wrought-iron gateway
• a means of access or entry to a place:Mombasa, the gateway to East Africa
• a means of achieving a state or condition:curiosity is the gateway to learning
• Computing a device used to connect two different networks, especially a connection to the Internet.