Sneaker
Part of speech: noun
Definition: An athletic shoe with a soft, rubber sole. One who sneaks.
Snitch
Part of speech: verb
Definition: To steal, quickly and quietly.To inform on.To contact or cooperate with the police for any reason.
Part of speech: noun
Definition: A thief.An informer, usually one who betrays his group.A nose (usage - UK: An itchy snitch) - see snitch/verification.