A signalling device used by military forces. Pressed between thumb and fingers, it makes a small but distinctive click understood by other members of a unit
A machine that cuts materials using a steel rule die. The name comes from the sound (click) when the material is cut. May be hand, pneumatic, or hydraulic powered
{i} person who distributes copy and oversees placement of text (Printing); head shoemaker who cuts out the upper part of a shoe and gives it to other workers; T.V. remote control device (Slang)
A small rectangular box with a metal tongue which when pressed and released makes a double click Used as a CR, the sound of the click: a) acts as a teaching tool (not a command! - not an attention getter!) b) marks the desired behaviour (like the shutter release on your camera) c) signals the end of the behaviour d) indicates that a UCR (in this case a treat) will follow