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Astronomical unit has 7 synonyms. The top synonyms for astronomical unit are AU, chaos, kilometer, light year, measure, outer space, space. Another word for astronomical unit is AU. Browse the full list below.
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| Random | DefinitionA common synonym for astronomical unit is AU. Other synonyms include chaos, kilometer, light year, measure.
Astronomical unit has 7 synonyms listed on Thesaurasize.
°The mean distance from the Earth to the Sun (the semi-major axis of Earth's orbit), approximately 149,600,000 kilometres (symbol AU), used to measure distances in the solar system.
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