landside

From land +‎ -side.

landside (not comparable)

1. Inland; away from the sea.
2. In the freely accessible area of an airport, outside of security, passport/immigration, and customs control.

   I had to remain landside because I did not have a boarding card.

   • 2006 October 15, Roger Collis, “Airport Lounge Programs: How to Get In (and How Much They Cost)”, in The New York Times‎^[1], archived from the original on 13 September 2024:

     You can relax, or catch up with work, safe in the knowledge that it’s just a few yards to the gate, assuming the lounge is “airside” (not “landside”).

   • 2018 December 6, Matt Falcus, “16 new airports and terminals we can’t wait to fly into”, in CNN‎^[2]:

     The airside terminal building will be extended into the landside building, making one large structure, getting rid of the people mover and remodeling the gate areas. It should be completed in 2023.

• (antonym(s) of “outside the secure zone of an airport”): airside

landside (plural landsides)

2. The flat bottom part of a plough.

   Coordinate terms: ploughshare, mouldboard, coulter

3. The freely-accessible area of an airport, outside of security, passport/immigration, and customs control.

   Antonym: airside

• Dinsdale, islanded