How do you spell Mere

Available Definitions:
1)  n. - A pool or lake.
2)  n. - A boundary.
3)  v. t. - To divide, limit, or bound.
4)  n. - A mare.
5)  Superl. - Unmixed; pure; entire; absolute; unqualified.
6)  Superl. - Only this, and nothing else; such, and no more; simple; bare; as, a mere boy; a mere form.