Synonyms & related words for lightyear

Find synonyms, related words, and the definition of lightyear. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to lightyear

Explore words related to lightyear — words associated with it, words that go with it, and its nearest matches in meaning. Related words include megaparsec, intersidereal, metagalaxy, radiogalaxy, aphelia, extragalactic, parsecs, galactic. Click any word to make it the center of the map and keep exploring the web of connections.

Where does lightyear come from?

The word lightyear breaks down into 2 roots of Old English origin: light, from Old English leoht (“light, radiance”); and year, from Old English gear (“year”). Explore each root to see other English words built from the same source.