Dictionary
gate•way
Pronunciation: (gāt'wā"), [key]—
n.
1. an entrance or passage that may be closed by a gate.
2. a structure for enclosing such an opening or entrance.
3. any passage by or point at which a region may be entered:
New York soon became the gateway to America.
4. software or hardware that links two computer networks.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.