sky

air; atmosphere

empty; air; sky; in vain

to empty; vacant; unoccupied; space; leisure; free time

outer space

to have time (to do sth)

in the sky; in the air

air force; (slang) to fail to catch anything (on a fishing trip); to get skunked

aviation

the skies above a certain place; (aviation) airspace; (Tw) topless

hollow; emptiness; meaningless

time and place; world of a particular locale and era; (physics) space-time

air conditioning; air conditioner (including units that have a heating mode); CL:臺|台[tai2]

spaceship

to clear; to empty

blank space

karate

to make an air raid

airline; CL:家[jia1]

space station

night sky

high altitude

to rise to the sky; to lift off; to levitate; liftoff

outer space

starry sky; the star-studded heavens

Sun Wukong, the Monkey King, character with supernatural powers from the novel Journey to the West 西遊記|西游记[Xi1 You2 Ji4]

vacancy

leisure; spare time; (of a person) free; unoccupied; (of equipment, rooms etc) unused; idle; vacant

to find the time to do sth

air-to-surface (missile)

vacant land; open space

abbr. for 空中小姐; stewardess; air hostess; female flight attendant

air base

(physics) vacuum; (fig.) vacuum; (slang) to not wear underwear

empty place; room (for sb)

cavity; empty; vacuous

unprecedented

empty-handed; unarmed; (painting, embroidery etc) without following a model; (abbr. for 空手道[kong1 shou3 dao4]) karate

aircraft carrier (CL:艘[sou1]); (fig.) juggernaut

baseless (lie); without foundation

empty; vacuous; nothing; vacant; in vain; all for nothing; air-to-air (missile)

anti-aircraft defense

to drop from the sky; (fig.) to appear out of nowhere; (attributive) airborne

air raid shelter; bomb shelter; (fig.) place that protects bad people; hideout

territorial air space

empty; deserted

to travel through time

space shuttle

spacious and empty; void