gate·way 
(gātwā′)
(gātwā′)n.
1. An opening or a structure framing an opening, such as an arch, that may be closed by a gate.
2. Something that serves as an entrance or a means of access: a gateway to success; the gateway to the West.
3. Software or hardware that enables communication between computer networks that use different communications protocols. Also called router2.
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