空

airport

air

emptiness

aviation

space

aircraft

air force

sky

sky

aerial bombing

blank space (in a document)

fictitious

unprecedented

empty seat

space

aircraft carrier

airspace

blue sky

air-raid

vacant land

cavity

vacant land

to become less crowded

karaoke

territorial airspace

Japan Air Self-Defense Force

air route

empty can

air conditioning

airline ticket

night sky

wide open sky

air transport

air defense

vacuum

karate

swing and a miss

racing (of an engine)

(outer) space

daydream

vacant house

starry sky

empty gun

airmail

space-time

empty

airline company

mid-air breakage

hollow

blank column

discount airline ticket

empty stomach

vacant room

low altitude

control of the air

cloudy sky

empty bottle

low-altitude flying

sky

abstract or impracticable theory

look of the sky

waste

British Airways

compressed air

empty nest

emptiness

aerial cableway

trapeze

day that something (e.g. a venue) is available to use

aerodynamics

air brake

international airspace

fake

thinking one saw something that wasn't actually there

karate chop

to be free

to become free

the empty nature of all things

All Nippon Airways

empty conveyance

falsehood

to speak from memory

Minkowski spacetime

Air Self-Defense Force

come to nothingness

air shower

to aerate

air pump

pneumatic drill

mixture of air and hydrocarbon gas or vapour

air suspension

air brake

air guitar

air tank (scuba)

pneumatic hammer

weather

type of loom used in olden times

changeable weather

empty name

dead letter

mastery of the air

short selling

anti-aircraft missile

anti-aircraft

exploding without destroying the target

deutzia (Deutzia crenata)

large space

air battle

surface-to-air missile

air-to-surface

air-to-surface missile

surface-to-air

inattention

inside a space

putting on a brave face

blank line

to pretend not to know

vent

air power

blank email (e.g. for signing up to an email list)

absentmindedness

to become empty

to empty

tenpai with all potential winning tiles visible on table (impossible to win)

The Shawshank Redemption (1994 film)

in vain

off the top of one's head

false

to die

flat broke

idling (of an engine)

blank (ticket)

to become empty (hollow)

almost completely empty

empty (e.g. intermodal containers in the transport industry)

blank email (e.g. for signing up to an email list)

to feel hungry

to feel hungry

empty file

null address

air pump

empty theory

high in the sky

high in the sky

to leave a space (between words)

fictitious transaction

German Air Force

United States Air Force

null space

Banach space