Quick Quiz: Nouns Score: Change category, Flip order Reset Incorrect! Try again. Noun: common ground Your choice? a basis agreed to by all parties for reaching a mutual understanding an integer that divides two other integers   (Noun: common measure) tall rush with soft erect or arching stems found in Eurasia, Australia, New Zealand, and common in North America a nation occupying the whole of the Australian continent; aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony   (Noun: commonwealth of australia)