Femom, or female dominance, refers to BDSM activities where the dominant partner is female; the submissive partner may be of either sex. A female dominant is sometimes called a domme (pronounced /ˈdɒm/), femdomme, domina, or dominatrix. In the English speaking world, "mistress" is by far the most common dominatrix title, while in most of continental Europe, the most common titles are, and some are etymologically related, maitresse, maid, maidress, matress, mother, mate, madre, or "momina." The most common dominatrix title in the Spanish language is "ama." The equivalent Japanese term is 女王様 (joōsama, or queen).