noun · used in 姆妈 m​mā, meaning mother

姆妈，我回来了。

noun · a woman employed to care for children or perform domestic work, typically used in the compound for nursemaid

他们家请了一位保姆来帮忙照顾刚出生的小宝宝。

noun · a female teacher or governess in ancient times

姆师在古代宫廷中负责教导年幼的皇族礼仪。