忍 - endure, bear, put up with

to conceal oneself; to hide

ninja; person trained in ninjutsu and employed for covert purposes in feudal Japan

endurance; perseverance; patience

brutal; cruel; merciless; ruthless; cold-blooded

silent clap (done during a funeral or during certain rites at the Ise Grand Shrine)

carrying out covert operations without being seen (of a ninja)

to put up with; to endure; to bear patiently

brutal (nature); brutality; blood lust; cruelty; ferocity

ninja implement (shuriken, etc.)

intolerable; unbearable

to be out of patience; to be unable to put up with something anymore

to avoid being seen; to be clandestine