Laughter is one of the best things in the world, it makes us feel good and often has a contagious effect on those around us. Bursting into laughter describes a sudden, intense burst of joy that overtakes us. However, sometimes we want to try other expressions for the same sentiment. Here are ten synonyms for "burst into laughter" that you might find useful: convulse with laughter, explode with laughter, roar with laughter, shake with laughter, howl with laughter, be convulsed with mirth, break up with laughter, crack up, split one's sides, and be doubled up with laughter. Using synonyms gives more variety to our language and can help us better describe the emotions we feel.