1. lighter-than-air

adjective. Relating to a balloon or other aircraft that flies because it weighs less than the air it displaces.
Synonyms
light
Antonyms
heavy dark
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2. lighter-than-air craft

noun. Aircraft supported by its own buoyancy.
Synonyms
aircraft balloon airship dirigible
Antonyms
unmanageable

3. heavier-than-air

adjective. Relating to an aircraft heavier than the air it displaces.
Synonyms
heavy
Antonyms
light effortless

4. lighter

noun. (ˈlaɪtɝ) A flatbottom boat for carrying heavy loads (especially on canals).
Synonyms
hoy houseboat boat dredger flatboat pontoon scow wherry barge Norfolk wherry
Antonyms
cool defuse dark dull bright

5. air

noun. (ˈɛr) A mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of.
Synonyms
atomic number 36 liquid air N Kr current of air atomic number 8 atomic number 7 krypton oxygen gas xenon Ne atomic number 54 O atomic number 18 Ar hot air argon breath atomic number 10 air current nitrogen wind Xe neon
Antonyms
let go of natural object straight line curve uncover
Etymology
air (English)
air (Middle English (1100-1500))
aeir (Anglo-Norman)

6. air

noun. (ˈɛr) The region above the ground.
Synonyms
part region
Antonyms
connect join stay
Etymology
air (English)
air (Middle English (1100-1500))
aeir (Anglo-Norman)

7. air

noun. (ˈɛr) A distinctive but intangible quality surrounding a person or thing.
Synonyms
quality atmosphere vibration note mystique aura vibe
Antonyms
uncoil stay in place lower untwine untune
Etymology
air (English)
air (Middle English (1100-1500))
aeir (Anglo-Norman)

8. air

noun. (ˈɛr) A slight wind (usually refreshing).
Synonyms
gentle wind light air air current strong breeze moderate breeze breeze light breeze sea breeze current of air wind fresh breeze gentle breeze breath zephyr
Antonyms
attach unify arrive stand still wholly
Etymology
air (English)
air (Middle English (1100-1500))
aeir (Anglo-Norman)

9. air

noun. (ˈɛr) The mass of air surrounding the Earth.
Synonyms
air space earth region world ionosphere atmosphere part airspace globe Earth
Antonyms
inside outside end beginning middle
Etymology
air (English)
air (Middle English (1100-1500))
aeir (Anglo-Norman)

10. air

verb. (ˈɛr) Expose to fresh air.
Synonyms
aerate expose air out
Antonyms
take recall disarrange keep quiet
Etymology
air (English)
air (Middle English (1100-1500))
aeir (Anglo-Norman)
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