Noun
One who, or that which, controls or restraines; one who has power or authority to regulate or control; one who governs.
An officer appointed to keep a counter register of accounts, or to examine, rectify, or verify accounts.
An iron block, usually bolted to a ship's deck, for controlling the running out of a chain cable. The links of the cable tend to drop into hollows in the block, and thus hold fast until disengaged.
Source: Webster's dictionaryController is so intuitive, even your mom can play. Shigeru Miyamoto
Controller Borasus sighed with relief. Libraries were not places of danger. It had to be a hoax. Diana Wynne Jones
Fictional serial killers are usually more pretentious than frightening, perpetually quoting Milton or arranging their victims in poses designed to evoke the martyrdom of St Sebastian. What are you, a cold-blooded murderer or the controller of Radio 3? Charlie Brooker
I can't drive, play football without crying, or successfully use a PS3 controller. Derren Brown
A controller that cannot control itself is worse than no controller at all: If you cannot manage yourself, you have no business managing others. Gerald Weinberg
The primary symptom of a controller is denial, that is I can't see its symptoms in myself. Keith Miller