Definition

1. Noun:
   • The atmosphere above a nation that is deemed to be under its jurisdiction: The part of the sky and atmosphere over a country's territory (including its land and territorial waters) that is controlled by that country's government.
   • The space in the atmosphere immediately above the earth: The physical portion of the sky used by aircraft for flight.

Usage

• Airspace is an uncountable noun. It is used to discuss legal control, flight paths, and aviation regulations.
• It is commonly used with verbs like enter, leave, control, close, restrict, violate and prepositions like in, into, over.

Examples

• The military jet accidentally violated the neighboring country's airspace.
• Commercial flights must obtain clearance before entering controlled airspace.
• Due to the storm, the airspace over the airport was temporarily closed.
• The drone was flying in restricted airspace near the government building.

Advanced Usage

• Controlled Airspace: Designated areas where air traffic control provides services to aircraft.
  • All flights in controlled airspace must follow ATC instructions.
• Restricted Airspace: Areas where flight is limited or prohibited for security or safety reasons.
  • The airshow created a temporary restricted airspace.
• National Airspace: Refers to the entire airspace under a nation's sovereignty.
  • The new policy aims to modernize the management of the national airspace.

Variants and Related Words

• Airspace Management (n): The planning and coordination of airspace use.
• Airspace Violation (n): The act of entering a country's airspace without permission.

Synonyms

• Sky (n): (Less specific; does not imply jurisdiction)
• Flight Path (n): (Refers to a specific route, not a general area)

Related Phrases

• To close airspace: To prohibit all air traffic from a specific area.
  • The authorities closed the airspace during the presidential visit.
• To declare airspace: To formally establish control over an area of the sky.
  • The new island nation immediately declared the airspace above it.

Noun

1. the atmosphere above a nation that is deemed to be under its jurisdiction
   • the plane was refused permission to enter Chinese airspace
2. the space in the atmosphere immediately above the earth