a door, gate, or entrance, esp. one of imposing appearance, as to a palace.

an iron or steel bent for bracing a framed structure, having curved braces between the vertical members and a horizontal member at the top.

an entrance to a tunnel or mine.

Computers . a Web site that functions as an entry point to the Internet, as by providing useful content and linking to various sites and features on the World Wide Web.

noun

doorway , entrance , entry , entryway , gate , gateway , ingress , opening , way in , adit , arch , augur , bode , door