1. (idiomatic) in a dangerous, hazardous, or delicate situation; at risk

Encyclopedia: On thin ice

• PIN number
• pin oak
• pin table
• pin tumbler
• pin wrench
• pin-tailed duck
• pin-tailed grouse
• pin-tailed sandgrouse
• pin-up
• pina cloth
• pina colada
• Pinaceae
• pinafore
• pinata
• Pinatubo
• pinball
• pinball game
• pinball machine
• pince-nez
• pincer
• pinch
• pinch bar
• pinch hitter
• pinch-hit
• Pinchas Zukerman