Pronunciation: (gāt'wā"), [key]
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.