informal term for sister
Shortened form of 'sister', first recorded as slang around 1650
It's amazing how three little letters can convey everything from affection to annoyance, depending on how you say it!
Informal gendered diminutive of 'sister,' carrying assumptions about family role and female informality. Used colloquially in ways that can minimize adult women (e.g., 'sis' vs. 'brother' carries different authority weight).
Use 'sibling' for gender-neutral reference. When using 'sis,' ensure same informality applies to male equivalents ('bro') and context doesn't diminish authority.
["sibling","sister (if gender-known)","family member"]
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