A Christmas tradition where a group of people give anonymous gifts to each other, with each person randomly selected to give a gift to one other person.

plural of trade secret

(business) A formula, practice, process, design, instrument, pattern, or compilation of information used by a business to obtain an advantage over competitors within the same industry or profession, which kept secret from those competitors or the public.

In Australian Aboriginal culture, restricted to initiated men, or to women; not public knowledge.

A member of an intelligence agency whose identity or affiliation is kept confidential.

plural of secret sauce

A sauce used in cooking or as a condiment, the ingredients of which are kept secret. / Synonym of special sauce

plural of secret society

plural of secret service

plural of secret ballot