On: LabelContactRelationYoungerCousinMothersSiblingsDa...

[smukherjee19]

Interesting! Reminds me in Japanese how you can (almost) tell what a sibling is composed of just by looking at the kanji characters. These are ALL read as "kyoudai":

兄弟：Elder brother, younger brother

姉弟：Elder sister, younger brother

兄妹：Elder brother, younger sister

The 4th remaining case is 姉妹, and is read "shimai".

[glandium → smukherjee19]

Same with oji (uncle)/oba (aunt):

叔父: uncle (younger than one's parent)

伯父: uncle (older than one's parent)

叔母: aunt (younger than one's parent)

伯母: aunt (older than one's parent)

[smukherjee19 → glandium]

Oh wow, I didn't know that one! Thanks!