max 
(măks) Slang
(măks) Slang n.
The maximum: The car can seat five adults, but that's the max.
adj.
Maximal.
adv.
Maximally: We'll pay $250 max.
intr.v. maxed, max·ing, max·es
1. To reach one's limit, as of endurance or capability: The weightlifter maxed out at 180 kilograms.
2. To reach a point from which no additional growth, improvement, or benefit is possible: The salary for this position maxes at $65,000.