LIGHT-YEAR

Pronunciation (US): (GB):

Meaning:

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

Synonyms:

light-year; light year

Classified under:

Nouns denoting quantities and units of measure

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)