CONTROLLER

control, controller

(noun) a mechanism that controls the operation of a machine; “the speed controller on his turntable was not working properly”; “I turned the controls over to her”

accountant, comptroller, controller

(noun) someone who maintains and audits business accounts

restrainer, controller

(noun) a person who directs and restrains

Source: WordNet® 3.1

Etymology

Noun

controller (plural controllers)

One who controls something.

(electronics) Any electric or mechanical device for controlling a circuit or system.

(business) A person who audits, and manages the financial affairs of a company or government; a comptroller.

(computer hardware) A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer.

(nautical) 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.

(espionage) The person who supervises and handles communication with an agent in the field.

(linguistics) The subject of a control verb. See Control (linguistics)

(software architecture) In software applications using the model-view-controller design pattern, the part or parts of the application that treat input and output, forming an interface between models and views.

Synonyms

• (one who controls): administrator, chief, foreman, head, head man, organizer, overseer, superintendent, supervisor

• (one who manages financial affairs): comptroller

• (device that regulates a machine's operation): driver

Hyponyms

• (computing): fuzzy controller, memory controller

• (computing, electronics): game controller, microcontroller, nanocontroller

• (software architecture): model–view–controller

Source: Wiktionary

Con*trol"ler, n. Etym: [From control, v.t.: cf. F. contrôleur.]

1. One who, or that which, controls or restraines; one who has power or authority to regulate or control; one who governs. The great controller of our fate Deigned to be man, and lived in low estate. Dryden.

2. An officer appointed to keep a counter register of accounts, or to examine, rectify, or verify accounts. [More commonly written controller.]

3. (Naut.)

Definition: 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 Unabridged Dictionary 1913 Edition