Laughter; specifically the sound of laughter. The i is long and should be pronounced reed-ence or ride-ence to avoid confusion with the word "riddance".

From the Latin ridere - to laugh, the word is related to deride and derision.
We had to let one comic go but his replacement is much funnier. So I guess - good riddance and good ridence.
by That Dance Guy November 30, 2009
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