Either sisters or end/termination
Tsuneni shimai
姉妹がない (shimai ga nai) would mean "no sisters".
Shinnai naru shimai
This is not a Japanese word.
Ko-(knee)-chi-(wah) She-my (then add [-san(formal or polite)] or [-chan(common and familiar)] So, it would be konichiwa Shimai-san! or Konichiwa Shimai-chan! And only when you are a very young (still in early-middle grade school) or a Girl (of any age) you can say Konichiwa Shimai-saaaaan! or Konichiwa shimai-chaaaaan!
Abbi does not appear to be a Japanese word.
"Ecut" is not a Japanese word.
there is no word bhaga in japanese, baka is fool
"Charline" is not a Japanese word.
"Seriak" is not a Japanese word.
that's not a Japanese word
"Stampes" is not a Japanese word.