How to label more than one curves in Mathematica?

[hanson]

Hi all.
I have say 5 curves in a 2-D plot and they are of different colors.
I would like to label them according to their colors or pattern.
Say,
--- Sin[[x]
___ Cos[x]

What command shall I refer to?

 

[cosmicstring1]

See the help page for PlotLegend command.