air; atmosphere; mood; situation; someone with no presence; someone who doesn't stand out at all
(in) the air; midair; sky
sky; the skies; high-altitude sky; upper air
empty air; sky; shunyata (the lack of an immutable intrinsic nature within any phenomenon); emptiness; air force; fruitlessness; meaninglessness
sky; air; ether; firmament; the heavens
blank space (in a document); blank; void; whitespace
cavity; hollow; cave; hollow
daydream; fantasy; fancy; vision
to read the situation; to sense the mood; to read the room
emptiness; hollowness; vacancy; inanity; pointlessness; meaninglessness
hollow; mid-air; air; sky
fictitious; imaginary; fanciful; aerial; overhead
to fly through the air; to hurtle through the air; to strike at something and miss; to fan the air
vacuum; absolute void; complete vacuity
unusual space; other dimension
subspace (in science fiction); space free from the laws of physics
empty seat; unoccupied seat; vacancy; vacant post
gliding (through the air)
underground space; subterranean space; subterranea
virtual space (e.g. in computer graphics)
anti-aircraft; antiaircraft
atmosphere (esp. of a place or person); mood; vibe; ambience
staying in the air; remaining airborne
air battle; dog fight; aerial battle
vacant land; unoccupied ground; empty lot
airborne (troops, operation, etc.)
(in) the air; midair; sky; (empty) space
blank column; blank space
feeling of emptiness in the stomach; sensation of hunger
vacant space; aperture; gap; opening
low-altitude flying; having consistently poor results (grades, sales, etc.); barely scraping by; being on the verge of failing
being empty-handed; being penniless; having no capital (for starting a business)
racing (of an engine); idling; going in circles (of an argument, discussion, etc.); spinning one's wheels; going nowhere
armchair theory; impracticable plan; unworkable idea
unable to read the situation; unable to pick up on the mood (e.g. of a conversation); unable to read the room
air route; air lane; by air; by plane
unable to read the situation; unable to pick up on the mood (e.g. of a conversation); unable to read the room
unprecedented; record-breaking
airborne troops; paratroops
hanging garden; hanging gardens
empty gun; gun loaded with blanks; firing a blank
air-raid shelter; bomb shelter
control of the air; air supremacy
(so marvelous or horrible that it may be) the first and probably the last
empty (e.g. argument); insubstantial; hollow; fruitless
mid-air breakage; mid-air disintegration
air transport; air lift; airlift
Minister of Works (Zhou dynasty China)
anti-aircraft gun; antiaircraft artillery
vacant post; vacancy; post in name only
vacant room; vacancy; unoccupied room; empty room
Japan Air Self-Defense Force; JASDF
imaginary; fantastical; visionary; utopian; quixotic; fanciful
abstract or impracticable theory
levitation; floating on air; airborne (e.g. bacteria); aero-
Air Self-Defense Force; ASDF
airline ticket; plane ticket; air ticket
land, sea and air; army, navy and air force
air pressure; pneumatic pressure
empty conveyance; empty taxi; free taxi; having spaces available (of a parking lot)
feeling of emptiness; sense of void
spatial awareness; spatial perception
phase space; topological space
surface-to-air missile; SAM
blank period; window period; interregnum
fictitious bill; dishonoured bill; bad check; empty promise
stroll in the air (e.g. leisurely helicopter, airplane ride)
vacuum pack; vacuum packing
Sun Wukong (character in the classic Chinese novel Journey to the West); Monkey King; Son Goku (Dragon Ball)
form is emptiness; matter is void; all is vanity
airspace incursion; airspace violation
nuclear-powered aircraft carrier
noncommissioned officer of the Japanese Air Self Defense Forces (Defence)
German Air Force; Luftwaffe
space perception; spatial perception; spatial awareness
mimicking sitting in a chair; air chair; wall sit; chain of people sitting on each other's laps
dreamer; daydreamer; visionary
making hollow; making meaningless; deindustrialization; deindustrialisation
airmail; air mail; air service; air transport (of goods)
flight dynamics; aerodynamics; aeromechanics
with bare hands; with or from nothing
emptiness is form; illusion of the reality of matter
treating (someone) like they are air; ignoring (someone)
anti-aircraft fire; shooting at an aircraft (from ground or ship)
Akasagarbha (bodhisattva); the Receptacle of Void
space manipulation (e.g. supernatural ability)
unprecedented in history; unheard-of; epoch-making
airman; airwoman; aviator
(Self Defense Force's Air Force) captain (defence); lieutenant
unmanned aerial vehicle (UAV); drone
escort carrier; jeep carrier
Great Tokyo Air Raid (March 10, 1945)
fox with supernatural powers
Akasagarbha (bodhisattva)
aerial show; air show; airshow
position space (quantum mechanics); real space
air defense identification zone; ADIZ
air flotilla; air fleet; combat aviation unit of the Imperial Japanese Navy
idle time; down time; window period
Amoghapasa (manifestation of Kannon)
air route; airway; air lane; air corridor
(anti-aircraft) searchlight
National Aeronautics and Space Administration; NASA
carrier strike group; CSG
National Aeronautics and Space Administration (USA); NASA
army, navy and air force; land, sea and air forces
senior master sergeant (JASDF)
aviation business; air transport service
air-to-surface missile; ASM
air conditioning unit; AC unit; air conditioner
air transportation; air transport; transport by air
aerial refueling; in-flight refueling
empty theory; impracticable theory
surface-to-air missile; SAM
Civil Aeronautics Law; Aviation Law
flight ticket; air ticket
false invoice; false billing
air sac; bladder; air bag; windbag
(electron) hole; (lattice) vacancy; void
air tanker; aerial tanker; airborne refuelling craft
to come to naught; to come to nought
(Self Defense Force's Air Force) colonel (defence); lieutenant; major
impractical theory; academic discussion; doctrinairism
aircraft warning lights; airplane warning lights; obstacle light; obstruction light
submarine aircraft carrier
lonely or uninhabited valley
airborne brigade; parachute brigate
the empty nature of all things
aeronautical radio; aircraft radio
tube amplifier; valve amplifier
space character; whitespace character; blank character
land and air; land and air forces
loss of equilibrium; vertigo
airman first class (JASDF)
(United States) Air Force Academy
horizon; point where the sky meets the earth
atmospheric vibration; infrasound (as produced by volcanic activity)
spatial art; space art; plastic arts; formative arts
empty name; false reputation
unsinkable aircraft carrier
Amoghasiddhi; Infallible Magic (a dhyani-Buddha)
the kalpa of nothingness (the final aeon of the universe)
the open sky and the serene sea; as open as the sky and serene as the sea; magnanimous
fictitious transaction; bogus transaction
ultra-high vacuum; UHV; extremely high vacuum; XHV
science fiction; sci-fi; fantasy fiction
blank cartridge; blank ammunition; blank
airborne troops; paratroops
(Self Defense Force's Air Force) general (defence); lieutenant; major
complete emptiness (i.e. as a denial of the inherent existence of all things); nirvana (where this emptiness is realized); (arch.) quiet and lonely
Japan Aerospace Exploration Agency; JAXA
Chinese water spinach (Ipomoea aquatica); ong choy; kang kong; water morning glory; water convolvulus; swamp cabbage
airman third class (JASDF)
airport site; adjacent to airport
vast; boundless; wide and empty; vague and hazy
barehanded; having no wealth or position to rely on (aside from one's own resourcefulness) (when embarking on something)
space-time; space-time continuum
groundless rumor or story (rumour)
vacuum vessel; vacuum chamber
low-cost carrier; LCC; low-cost airline
chunky mochi made with half-polished rice, stuffed with red bean paste
round trip (airplane) ticket
air transportation; air transport; transport by air
stand-by (on an airplane)
lonely, spouseless bedroom; bedroom of a neglected spouse
air transportation; air transport
unable to read the situation; unable to pick up on the mood (e.g. of a conversation); unable to read the room
Great Interregnum (period of the Holy Roman Empire; approx. 1254-1273)
air brake; speedbrake; aerobraking; aerobrake
perfect vacuum; absolute vacuum
earth, water, fire, wind and void (the five elements)
moving while the brakes are applied but before they start to slow the vehicle down
international airspace; international space
fraud based on demanding payment for false claims or non-existent bills
matter is void; all is vanity
visual space; visuospatial
respirator; breathing apparatus
air dose (esp. radioactivity)
air freight; airborne cargo
Laputa: Castle in the Sky (1986 animated film); Castle in the Sky
empty string; null string
vacuolation; vacuolization
air traffic control tower
atmospheric oxidation; oxidation upon exposure to the air; air oxidation; smoothering
vacant and unthinking; something that should be there is not
National Aerospace Laboratory; NAL
airman second class (JASDF)
fictitious transaction; paper transaction
stalled session of the Diet (Japanese Parliament)
Kumuhensho; lowest heaven of Mushikikai; realm of non-form
technical sergeant (JASDF)
Federation Aeronautique Internationale; International Aeronautical Federation; FAI
fear of having blank days (e.g. for a freelancer); fear of not having anything planned
pneumatic drill; air drill
mixture of air and hydrocarbon gas or vapour
air suspension; air spring
pedestrian zone; pedestrian space
auxiliary air bag (balloon, etc.); ballonnet
colour space; color space
All Nippon Airways (abbr); ANA
spatiotemporal art; spatial-temporal art
space or area for water-lovers
spatio-temporal information science; time-space information science
air conditioning unit; AC unit; air conditioner
momentum space (quantum mechanics)
aerodynamic sound; aerodynamic noise
display space; operating space
airborne wind power generation; kite power generation
Japan Air Self-Defense Force; JASDF
Japan Domestic Airlines (1964-1971)
pneumatic controller; air flow regulator
Civil Aviation College - Obihiro Branch
Civil Aviation College; College of Aeronautics; COA
Civil Aviation College - Sendai Branch
Japanese war tuba; pre-radar acoustic locator used by the Imperial Japanese Army
Japan Aviation Electronics Industry, Limited
JAL Flight Crew Union; JFU
Central Japan International Airport Co., Ltd.; CJIAC
unconstrained creativity; bold and imaginative; (lit.) (like a) a heavenly steed soaring across the skies
multiple virtual address space
shop on the second floor or higher; non-ground-floor shop
air dose rate (esp. radioactivity)
Japanese Society for Aeromedical Services
vacuum cooking; sous vide
AATC; Automatic Air Traffic Control
Department of Civil Aviation
Regional Civil Aviation Bureau
tactical air control center (centre)
trapeze artist; aerial artist
Air Officer Candidate School
exploding without destroying the target; going off (of a gun) before taking aim
pilot logbook; aircraft technical logbook
Naha Harbour and Airport Construction Office
battlefield air interdiction
air writing; spacial calligraphy (artform)
superficial velocity; superficial flow velocity
Air Force Association; AFA
information on space availability in a parking lot (car park)
conventional aircraft carrier (i.e. non-nuclear)
Air Developing and Proving Command
International Academy of Astronautics
vactrain; vacuum tube train
theoretical air fuel ratio
Thai Airways International
air waybill; air consignment note; AWB
National Air Traffic Controllers Association; NATCA
certificate of airworthiness; airworthiness certificate
Special Air Service; Special Air Service Regiment
airplane mode (setting on an electronic device); flight mode
brake reaction distance; brake lag distance
Kansai International Airport Co., Ltd.; KIAC
New Kansai International Airport Co., Ltd.
Federal Aviation Administration; FAA
truth of emptiness (holding that all things are void)
cavity resonator; microwave resonance cavity; rhumbatron
tactical air control party
hollow brick (used for thermal isolation or moisture proofing)
Aerolineas Argentinas (airline)
Royal Jordanian (airline)
Cathay Pacific (Hong Kong airline)
vacuole (esp. in an animal cell)
elevated railway; overhead railway
Kukai (name of a Buddhist priest)
New Tokyo International Airport Authority
hypersonic glide vehicle; hypersonic glide weapon
air defense artillery; air defence artillery
aviation insurance; aerial insurance
(aircraft) pilotage; airmanship
one-way airline ticket; one-way plane ticket
Korea Aerospace Research Institute; KARI
military police brigade (air force)
depletion layer (of transistor)
South African Airways; SAA
European Aeronautic Defense and Space Company EADS NV
man-portable air-defense system; MANPADS
airport-imposed taxes; airport tax
National Aeronautics and Space Administration; NASA
deserted and lonesome; quiet and alone; innocent and nonattached; All is void