akka or thangai
In Tamil, elder sister is called "அக்கா" (Akka).
akka or thangai
சகோதரி, தங்கை, அக்காள் (sagothari, thangai, akkal) sister, younger-sister, elder-sister.
akka .. for elder thangai for younger
It means little sister in Tamil. If you want to say big sister in Tamil it is acca.
You would call your father's sister "பெரிய அந்தை" (periya anthai) in Tamil.
In Tamil, you would say "அம்மாவின் சகோதரி" to refer to your mother's sister.
Sister's son or Brother's son.
Sister's husband is called Athimber (Brahmin way of Tamil) or Maamaa
Oh, dude, in Tamil, you say "Chinna Thangai" for "small sister." It's like calling her the little version of a sister, you know? So, next time you want to refer to your petite sibling in Tamil, just drop that "Chinna Thangai" like it's no big deal.
periamma
'tangai ~ tange'