SIL

Meaning Sister-in-law
Type Acronym
Rank ★ ☆ ☆  Uncommon
Usage General (not just online)
Comments Refers to a spouse's sister.
Updated September 11, 2013
Meaning Son-in-law
Type Acronym
Rank ★ ☆ ☆  Uncommon
Usage Online Only (chat, messaging, e-mail)
Comments Refers to a husband's relation to his wife's parents.
Updated October 23, 2013
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