Verses with the word laughter in the Old Testament (6 verses):

Psalms 126:2
Then was our mouth filled with laughter, and our tongue with singing: then said they among the heathen, The LORD hath done great things for them.

Proverbs 14:13
Even in laughter the heart is sorrowful; and the end of that mirth is heaviness.

Ecclesiastes 2:2
I said of laughter, It is mad: and of mirth, What doeth it?

Ecclesiastes 7:3
Sorrow is better than laughter: for by the sadness of the countenance the heart is made better.

Ecclesiastes 7:6
For as the crackling of thorns under a pot, so is the laughter of the fool: this also is vanity.

Ecclesiastes 10:19
A feast is made for laughter, and wine maketh merry: but money answereth all things.