(~s)
Frequency: The word is one of the 1500 most common words in English.
1.
The ~ item in a series is the one that you count as number nine.
...January the ~.
...students in the ~ grade.
...~ century illustrated manuscripts.
ORD
2.
A ~ is one of nine equal parts of something.
In Brussels the dollar rose by a ~ of a cent...
FRACTION