What does :-( stand for?

:-( stands for "Frown (Original Smiley)"

How to abbreviate "Frown (Original Smiley)"?

"Frown (Original Smiley)" can be abbreviated as :-(

What is the meaning of :-( abbreviation?

The meaning of :-( abbreviation is "Frown (Original Smiley)"

What does :-( mean?

:-( as abbreviation means "Frown (Original Smiley)"