1) Amusement ride 2) Mover 3) Someone who scrambles 4) Telecommunications equipment 1) Bike 2) Motorbike 3) Ride 
In telecommunications, a scrambler is a device that transposes or inverts signals or otherwise encodes a message at the transmitter to make the message unintelligible at a receiver not equipped with an appropriately set descrambling device. Whereas encryption usually refers to operations carried out in the digital domain, scrambling usually refers...
• (n.) A greedy and unceremonious contestant. • (n.) One who scrambles; one who climbs on all fours.
a device used to combine a digital signal with a pseudo random sequence and intended to produce a randomized digital signal which conveys the same information and facilitates its transmission NOTE - The associated verb is 'to scramble'.
Scram'bler noun 1. One who scrambles; one who climbs on all fours. 2. A greedy and unceremonious contestant. 
[n] - a rapid mover 2. [n] - a motorcycle with ridged tires and a strong suspension 3. [n] - electronic equipment that makes speech unintelligible during transmission and restores it at reception
noun electronic equipment that makes speech unintelligible during transmission and restores it at reception