spyˈcam noun

A camera set up for hidden surveillance purposes, esp a webcam relaying pictures to a computer

spyˈglass noun

A small hand-held telescope

spyˈhole noun

A peephole, eg in a door

spyˈmaster noun

A person who controls and co-ordinates the activities of undercover agents

spyˈ-money noun

Money paid for secret intelligence

spyˈplane noun

An aeroplane specially equipped to collect information on enemy positions, military manoeuvres, etc

spyˈware noun

Computer software that gathers information about the user and transmits it to another computer user

spy in the cab (informal)

A tachograph fitted in a lorry or truck