outer space (n.)

• acreage
• antipodes
• area
• bowels
• breadth
• chaos
• continuum
• depths
• dimension
• emptiness
• expanse
• expansion
• extension
• extent
• field
• frontier
• hell
• light-year
• measure
• nothingness
• nowhere
• outback
• outpost
• outskirts
• parsec
• pole
• proportion
• space
• sphere
• spread
• surface
• tract
• underworld
• void
• volume