秘密 ひみつ secret; secrecy; confidentiality; privacy n adj-na adj-no mystery n secret (e.g. to success) n esoteric teachings n Buddh Beginner II ➥
秘訣 ひけつ secret (method, trick, etc.); key (e.g. to success); mysteries (of an art, trade, etc.); recipe; trick n Advanced ➥