Definition of wakers:
(n) :
One who wakens or arouses from sleep.
(n) :
One who wakes somebody or something.
(adj) :
(now chiefly UK dialectal) Watchful; vigilant; alert.
(n) :
(programming) In the Rust programming language, a handle that "wakes up" a task by notifying its executor that it is ready to be run.
(n) :
A surname transferred from the nickname.