Vocabulary consisting only from characters you are able to read
忍び
shinobi
(1)stealth, (2)(abbr) travelling incognito (traveling), (3)(abbr) ninjutsu, (4)(abbr) ninja, (5)sneak theft, sneak thief, (6)tolerance mix
水力
suiryoku
hydraulic power, water powermix
三日
mikka
three days, the third day of the monthjlpt5, toki