hái yǒu āyí kěyǐ shì māma de jiěmèi yě kěyǐ fànzhǐ niánjì dà de nǚxìng

还有“阿姨”，可以是妈妈的姐妹，也可以泛指年纪大的女性。

Also, 'ayi' can refer to mother's sister, or it can generally refer to older women.