牝 (w)

(pìn) (of a bird, animal or plant) female; keyhole; valley

牝牡 (w)

(pìnmǔ) male and female

牝牡骊黄 (w)

(pìnmǔlíhuáng) a black stallion or possibly a yellow mare (idiom); don't judge by outward appearance

牝鸡司晨 (w)

(pìnjīsīchén) female chicken crows at daybreak (idiom); a woman usurps authority; women meddle in politics; The female wears the trousers.

牝鸡牡鸣 (w)

(pìnjīmǔmíng) female chicken crows at daybreak (idiom); a woman usurps authority; women meddle in politics; The female wears the trousers.