Thesaurus

light-year

noun

Synonyms & Antonyms of light-year

a huge physical or conceptual distance
  • my sister and I are close in age, but personality-wise, there are light-years between us

Synonyms for light-year

Words Related to light-year

Near Antonyms for light-year

See the Dictionary Definition 

Keep scrolling for more

Learn More about light-year

Time Traveler for light-year

Time Traveler

The first known use of light-year was in 1867

See more words from the same year

Cite this Entry

“Light-year.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/light-year. Accessed 22 Oct. 2020.

Keep scrolling for more

More from Merriam-Webster on light-year

Dictionary: Definition of light-year

Nglish: Translation of light-year for Spanish Speakers

Britannica.com: Encyclopedia article about light-year

Comments on light-year

What made you want to look up light-year? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!