(n): one who supervises or has charge and direction of
(n): someone who gives a warning so that a mistake can be avoided
(n): a person who cares for persons or property
(n): an ironclad vessel built by Federal forces to do battle with the Merrimac
(n): a craft designed for water transportation
(n): display produced by a device that takes signals and displays them on a television screen or a computer monitor
(n): an electronic device that represents information in visual form
(n): electronic equipment that is used to check the quality or content of electronic transmissions
(n): equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)
(n): a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble
(n): equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)
(n): any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles
(n): relatively long-bodied reptile with usually two pairs of legs and a tapering tail
(v): keep tabs on; keep an eye on; keep under surveillance
(v): watch attentively
(v): check, track, or observe by means of a receiver
(v): watch attentively
