Shinobi
Part of speech: noun
Definition: A ninja.
Ninja
Part of speech: noun
Definition: A person trained primarily in stealth, espionage, assassination and the Japanese martial art of ninjutsu.A Mongolian amateurish private miner (mainly for gold); after the shape of the plastic bowls used to wash metal ore with mercury, roughly resembling one of the Teenage Mutant Ninja Turtles.
Part of speech: verb
Definition: To act in the manner of a ninja, especially in the areas of speed and power.To post a response on an Usenet newsgroup or an internet forum faster than another person, esp. when the person is typing their response.