first
noun
1.
the first or highest in an ordering or series
2.
the first element in a countable series
3.
4.
the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate)
5.
an honours degree of the highest class
6.
the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving