galaxy

word

/ˈɡæɫəksi/
GA-luhk-see
/ɡˈælɐksˌi/
GA-luhk-see

Definition

A galaxy is a very large system of stars, gas, dust, and planets held together by gravity. Our solar system is part of the Milky Way galaxy.

Usage & Nuances

Usually used in astronomy and science contexts. 'Galaxy' can also be used figuratively in formal or literary English to mean a brilliant group of people, as in 'a galaxy of stars'. Do not confuse it with 'solar system': a galaxy is much larger.

Example Sentences

The Milky Way is our galaxy.

basic

That galaxy has billions of stars.

basic

Astronomers think this galaxy may have formed very early in the universe.

natural

We learned about the galaxy in class today.

basic

Sometimes it's hard to believe how small we are in this huge galaxy.

natural

The photo was so clear that you could see the shape of the galaxy.

natural