outer (as in "outer space")
Space = lewa
Yes, "space" is not a compound word. It is a standalone word on its own.
Is there a space word for every letter in the alphabet?
The word "space" is spelled correctly.
rúm
Space related word is "Astronaut"
There is debris such as satellites, gloves, nuts, etc. in outer space. Docking is a space word.
The Spanish noun word for "space" is "espacio". If the word "space" is used as a descriptive (eg. space ship), it is translated as "espacial".
Terra Firma (If that's what you mean by space word)
A space word that starts with z is Zaurak.
The word "space" has a long "a" sound, pronounced as "spās."
Big dipper is an outer space word. Black hole is another outer space word that begins with the letter b.