jammer

In logging, an improved form of gin, mounted on a movable framework and used to load logs on sleds and cars by horse-power.

Any device used to jam radio reception.

A form of swimwear used by athletes.

A device (e.g. a jumar) which will slide along a rope in one direction but not the other, used in rock-climbing, caving etc.

A player in who attempts to score points by making their way past other players.

a transmitter used to broadcast electronic jamming