also: きょうだい
sisters
Refers to female siblings. Can be used for biological sisters or in a figurative sense for closely related organizations or things.
彼女には二人の姉妹がいます。
She has two sisters.
この二つの都市は姉妹都市です。
These two cities are sister cities.
We are three sisters.
I don't have any sisters.
Kyoto has become a sister city with Paris.
companion volume; sister volume; sequel
sister group; sister taxon
Gikun reading; used in some contexts to refer to sisters, but しまい is the standard reading.