To the highest degree.
A scoring shot for 6 runs.
The greatest value of a set or other mathematical structure, especially the global maximum or a local maximum of a function.
A 147 break; the highest possible break.
A score of 180 with three darts.
The highest limit.
An upper bound of a set which is also an element of that set.
The largest value of a batch or sample or the upper bound of a probability distribution.
Uppermost.