gwong1 nin4光年

Jyutpinggwong1 nin4
Yalegwōng nìhn
量詞

Definition

Light-year; a unit of astronomical distance equal to the distance that light travels in a vacuum in one year.

neutralnature

How it's used

Scientific terminology often sounds formal in Cantonese, but this term is frequently used in casual science discussions or science fiction contexts. It functions as a unit of measurement rather than a standard noun, so it is usually preceded by a number or a quantifier like 幾.

Common phrases

how many light-years
several million light-years

Common mistake

Learners sometimes mistakenly use this to describe a long period of time, as if it were a unit of duration. Remember that it strictly measures distance in space, not the passage of time.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector