Skip to main content
light year

light year

18 4.1
A very large gap in progress or quality
  • noun
  • /ˈlaɪt jɪr/
  • Informal
translation icon : año luz
  • Brother, I am light years from that now.
  • light years ahead
  • light years away

But it also remains light years away from me.

Autoplay Next

Examples

  • Large-scale genetic engineering is light-years beyond breeding in its risks.

    Fiction book (1997)
  • The planned community was light-years removed from the towns I'd passed through on my drive there.

    Fiction book (1999)
  • But it also remains light years away from me.

  • And then today where they are is like light years from where it started, but in a good way.

  • The library program is light years from where it was when I started.

    Academic text (2011)
  • Light years ahead of the competition.

  • She's light years beyond anyone else I ever taught.

  • Our problems of civility and professionalism are light years more complex and difficult than what Pound described.

    Academic text (1998)
  • In effect, the most brilliant minds often teleport light-years ahead of others because they are not confined by linear pen-and-paper thinking.

    Academic text (2014)
  • The new educational curriculum is light years ahead of what we had in the past.

Synonyms

light years ahead
vslight year
  • Informal
4 5.6

Much more advanced than others in development and skill

describes a very large distance or gap in development or quality

How Far

worlds apart
  • Informal
9 4.5
light year
  • Informal
18 4.1
a long way
255 3.6
separation
74 2.5

Surface Forms

light year singular
light years plural

Morphology

light + years

The figurative meaning ('a very large distance or gap') is related to the literal astronomical unit: a light-year is how far light travels in one year, so the sense is partially inferable from the parts. However, understanding the magnitude and how it becomes a metaphor requires background knowledge (the speed/distance implication) that a B1 learner who only knows 'light' and 'year' may not have, so the relation is not fully transparent.

Etymology

Light year is used in a figurative way because a light year is such a very long distance; people say 'light years ahead' to mean 'much further ahead' in progress, skill, or quality.