Is “Mirth” a Scrabble word?
Yes
MIRTH
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Mirth
/mɜːθ/
noun
1.The emotion usually following humour and accompanied by laughter; merriment; jollity; gaiety.
2.That which causes merriment.
Synonyms: delight, glee, hilarity, jollity