Shinobi is a Japanese term that refers to a ninja. The word is widely recognizable because of the many portrayals of ninjas in movies, television shows, and popular culture. However, there are other words that can be used as synonyms for shinobi. One of these words is "rappa," which means "violent wind" in Japanese and refers to a ninja who is skilled with throwing weapons such as shuriken or kunai. Another synonym for shinobi is "kusa," which means "grass" in Japanese and refers to a ninja who specializes in stealth and infiltration. Additionally, "suppa" can also be used as a synonym, which refers to a ninja who is cunning and sneaky.