n.
1.any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc.
2.a official responsible for control and supervision of a particular activity or area of public interest
3.a control that maintains a steady speed in a machine (as by controlling the supply of fuel)
Idiom of the Day
luck out
to suddenly get lucky even though it looks like you will not succeed
I lucked out with the concert tickets and was able to buy four of them.
