1. (

• gym_shoe ,
• sneaker ,
• tennis_shoe

) a canvas shoe with a pliable rubber sole ;

2. (

• fink ,
• snitch ,
• snitcher ,
• stoolpigeon ,
• stool_pigeon ,
• stoolie ,
• sneak ,
• sneaker ,
• canary ,

) someone acting as an informer or decoy for the police ;