Noun
no-fly zone (plural no-fly zones)
An airspace in which aircraft, especially military aircraft, are forbidden to fly.
Synonym: NFZ
no-fly-zone
I've been as a pilot involved in the Gulf War. And then, in the No-Fly Zone. Philippe Perrin
The Kurdish people welcome the no-fly zone protection, contrary to the Iraqi regime that is against it. Jalal Talabani
In just one month, the United States has worked with our international partners to mobilize a broad coalition, secure an international mandate to protect civilians, stop an advancing army, prevent a massacre, and establish a no-fly zone with our allies and partners. Barack Obama