stca

/S T K AH0/
noun
  1. 1

    Initialism of Safe Third Country Agreement

  2. 2

    (aviation) Initialism of short-term conflict alert, a system for automatically warning air traffic controllers if radar data indicates that two or more aircraft will pass dangerously-close to one another or potentially collide in flight.

adjective
  1. 1

    (real estate) Initialism of subject to council approval.