(informal) Someone who is being secretive.

plural of secret sock

(Africa) no show sock

plural of secret recipe

A recipe whose details are held under secrecy.

plural of secret handshake

A distinct form of handshake, often with the fingers or thumbs specially positioned, that covertly indicates a person's membership of a club or clique.

plural of secret squirrel

(dermatology, pathology) An apical portion of a cytoplasm of secretory cells which project prominently as buds into a lumen.

plural of secret menu