Light-year — Meaning, Definition & Synonyms
Meaning & Definition of Light-year
Light-year (noun)
- a unit of length in astronomy equal to the distance that light travels in one year in a vacuum or about 5.88 trillion miles (9.46 trillion kilometers)
- an extremely large measure of comparison (as of distance, time, or quality)
Light-year (noun) — Senses, Synonyms & Antonyms
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a huge physical or conceptual distance
"my sister and I are close in age, but personality-wise, there are light-years between us"
Synonyms, Thesaurus & Another Word for Light-year
The most common words with a similar meaning to Light-year:
Near Antonyms of Light-year
Origin & Etymology of Light-year
First known use: 1864
Frequently Asked Questions about Light-year
What does "Light-year" mean?
"Light-year" means a unit of length in astronomy equal to the distance that light travels in one year in a vacuum or about 5.88 trillion miles (9.46 trillion kilometers). As a noun, it is defined as: a unit of length in astronomy equal to the distance that light travels in one year in a vacuum or about 5.88 trillion miles (9.46 trillion kilometers).
What is another word for "Light-year"?
Other words for "Light-year" include galaxy and world. The best synonym depends on which meaning of "Light-year" you intend.
How do you use "Light-year" in a sentence?
Examples of "Light-year" in a sentence: "my sister and I are close in age, but personality-wise, there are light-years between us".
Is "Light-year" a noun, verb, or adjective?
"Light-year" is a noun.
How do you pronounce "Light-year"?
"Light-year" is pronounced /ˈlīt-ˌyir/.
What is the origin of the word "Light-year"?
First known use: 1864.
What is another word for "Light-year" meaning "a huge physical or conceptual distance"?
When "Light-year" (noun) means a huge physical or conceptual distance, synonyms include galaxy and world.
What words are related to "Light-year"?
Words related to "Light-year" include country mile, long haul, way and infinity.