Sib

Pro Tip 1/3

Used in casual or informal contexts, often among youth or when affectionately referring to a sibling.

At the reunion, I introduced Jamie as my sib.

Pro Tip 2/3

'Sib' is a non-gender-specific term, useful when you do not want to specify the brother or sister gender.

My sib will join us later; they are always late.

Pro Tip 3/3

Appropriate for informal settings when introducing your sibling without formal titles.

Hey, this is Alex, my sib.