the pericardium, which encloses the heart. / a chamber within the heart

(now historical) a person charged with keeping or maintaining the contents (esp. valuable items) of a closet.

a closet opening off a bedroom / a small bedroom

(obsolete, euphemistic) An outhouse: an outbuilding used as a lavatory.

(finance) A mutual fund that closely resembles an index fund, while charging higher fees for active management.

plural of closet index

(US, Canada) A small room adjoining a domestic bedroom where people may dress or undress in privacy.

plural of closet audit

A stylist's service of analyzing a client's wardrobe of clothing and determining what to keep and what to discard.

plural of closet queen