Aloha: Kaikuaʻana (older of a female); kaikaina (younger of a female); kaikuahine (of a male); or just kika or tita (slang). Add aloha after either of these for dear.
In Hawaiian, you can say "ʻānela" which means dear one or angel.
In Hawaiian, "spirit sister" can be translated as ʻōpiopio ʻuhane.
i love you my son
aloha kāua [aloha ka-oo-ah] or mai kāua [my ...]
In Hawaiian, you would refer to your little sister as "kaikaina," which means "younger sibling."
Thank you
Chère belle-soeur
punahele
kaikaina mailani (younger of a female) [k+I- k+I-na my-la-nee] kaikuahine mailani (younger of a male) [k+I-koo-ah-hee-nay my-la-nee]
Cảm ơn bạn, em yêu chị.
Dear brother and sister = לאחי ולאחותי היקרים (le'achi ve-le'achoti hayekarim)
kuafafine