air
airnoun
UK/eə/US/er/
GAS
A1the mixture of gases around the earth that we breathe
- Let's go outside and get some fresh air.
- The air in the city is very polluted.
PLANES
A2travel by plane
- Most visitors arrive by air.
- Air travel has become much cheaper.
SPACE ABOVE
B1the space above the ground
- She threw the ball high into the air.
QUALITY
C1a particular feeling or quality that a person or place seems to have
- There was an air of excitement in the room.