<p><strong>Noun</strong></p><ul><li>an entrance or passage that may be closed by a gate.</li><li>a structure for enclosing such an opening or entrance.</li><li>any passage by or point at which a region may be entered: New York soon became the gateway to America.</li><li>software or hardware that connects two disparate computer networks, as to enable the passage of information between a home or business network and the internet.</li><li>software that facilitates digital communication of text messages over cellular telephone networks.</li></ul><p><strong>Adjective</strong></p><ul><li>relating to or noting an ingested substance, habit, activity, etc., that is relatively free of bad effects but may lead to more dangerous or extreme choices: sweet gateway drinks that mask the taste of alcohol; gateway gadgets that seem simple enough, but tempt you to buy expensive accessories.</li></ul><p><strong>End of Response</strong></p>