(~s)
1.
A ~ is a very deep crack in rock, earth, or ice.
N-COUNT
2.
If you say that there is a ~ between two things or between two groups of people, you mean that there is a very large difference between them.
...the ~ that divides the worlds of university and industry.
...the ~ between rich and poor in America.
= gulf, gap
N-COUNT: usu with supp, oft N between pl-n