姉し妹まいalso: きょうだいしまいCommon wordJLPTN3Freq.FrequencyTop 5,000Meanings1nounsistersRefers to female siblings. Can be used for biological sisters or in a figurative sense for closely related organizations or things.彼かの女じょには二人ふたりの姉し妹まいがいます。She has two sisters.この二ふたつの都と市しは姉し妹まい都と市しです。These two cities are sister cities.