Vocabulary consisting only from characters you are able to read
忍び
しのび
(1)stealth, (2)(abbr) travelling incognito (traveling), (3)(abbr) ninjutsu, (4)(abbr) ninja, (5)sneak theft, sneak thief, (6)tolerance mix
山
やま
mountain, pile, heap, climax, critical pointjlpt5, shizen
五月雨
さみだれ
early-summer rain; early-summer rainmix