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LIGHT-YEAR

Pronunciation (US): 

 Dictionary entry overview: What does light-year mean? 

LIGHT-YEAR (noun)
  The noun LIGHT-YEAR has 1 sense:

1. the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers

  Familiarity information: LIGHT-YEAR used as a noun is very rare.


 Dictionary entry details 


LIGHT-YEAR (noun)


Sense 1light-year [BACK TO TOP]

Meaning:

The distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

light year; light-year

Hypernyms ("light-year" is a kind of...):

astronomy unit (a linear unit used for astronomical distances)

Meronyms (parts of "light-year"):

light hour (the distance light travels in a vacuum in one hour; approximately one billion kilometers)

light minute (the distance light travels in a vacuum in one minute; approximately 18 million kilometers)

light second (the distance light travels in a vacuum in one second; approximately 300,000 kilometers)


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