coin - comp
- coin
- coin arm mechanism
- coin box
- coin box set
- coin call
- coin changer
- coin changing device
- coin chute
- coin collecting
- coin collector
- coin flip
- coin guessing
- coin guessing game
- coin level detector
- coin matching game
- coin receptacle
- coin refund
- coin relay
- coin return
- coin slot
- coin station
- coin telephone
- coin telephone collection
- coin telephone totalizer
- coin tossing
- coin tossing game
- coin trigger
- coin-operated
- coin-operated telephone
- coin-tossing
- coin-tossing model
- coin-tossing problem
- coin-weighing problem
- coincide
- coincidence
- coincidence analyzer
- coincidence degree
- coincidence index
- coincidence measurement
- coincidence method
