1. Of devices that do not operate without the prior insertion of one or more coins
   "a coin-operated telephone"

See also: coin machine

• soundlessness
• soundly
• soundman
• soundness
• soundproof
• soundtrack
• soup
• soup bowl
• soup du jour
• soup kitchen
• soup ladle
• soup plate
• soup up
• soup-strainer
• soupfin
• soupfin shark
• soupiness
• soupspoon
• soupy
• soupçon
• sour
• sour bread
• sour cherry
• sour cherry tree
• sour cream