If you are looking for your younger sister you would say "watashi no imouto wa doko deshouka?" [私の妹はどこでしょうか]
If you are looking for your older sister you would say "watashi no one wa doko deshouka?" [私の姉はどこでしょうか]
So one is older sister and imouto is younger sister.
You may say 'imouto.'
zan zumi
The term 'little sister' could be translated as 'imouto', to say 'my little sister' you could say 'watashi no imouto'. But remember, if you are going to refer to someone else's little sister, you must say 'imouto-san', 'san' being the honorific, which are a key element of the Japanese language and etiquette.
"neko no onesan" which basically means "cat's big sister"
You may say 'imouto.'
Imōto no futago no imōto
I-mo-u-to いもうと
The sentence 'I love my sister' would be 姉が大好きです (ane ga daisuki desu) in Japanese when talking about one's older sister. To say 'I love my sister' when referring to a younger sister, you would say 妹が大好きです (imouto ga daisuki desu).
赤ん坊の妹 /a kan bou no i mou to/.
the japanese word for younger sister is "imouto". the word for older sister is "ane"
私のお姉ちゃん (watashi no oneechan)
"Older sister" is 'ane,' while "younger sister" is 'imouto.' Written in Japanese, they are (respectively): 姉 妹