deep space

1. 1.

   any region in space outside the solar system

   Broaderregion

   Part ofouter space

Questions about deep space

What does deep space mean?

deep space means "any region in space outside the solar system".

Is deep space a common word?

deep space is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.