noun.
The emotion usually following humour and accompanied by laughter; merriment; jollity; gaiety.
noun.
That which causes merriment.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
great merriment
Word Usage
"II. i.27 (220,2) [I was then frugal of my mirth] By breaking this speech into exclamations, the text may stand; but I once thought it must be read, If _I was_ not _then frugal of my mirth_."