Big dipper is an outer space word. Black hole is another outer space word that begins with the letter b.
Big dipper and black holes are space words. They begin with the letter b.
berth
Big dipper and black holes are space words. The Black Eye Galaxy is a galaxy in outer space.
Blasphemously is a long word. It begins with the letter b.
One scientific word that begins with "B" is "biology," which is the study of living organisms.
Boolean.
Baso
Alan b. shepared
A 4 letter word that begins with B is bend.
But U
Bacterium Bacilli
Baron