This is the 1994th most frequent French word.
éclaté
Broken, burst, or exploded.
Here, 'éclaté' is used in a literal sense referring to a sudden burst.
Le ballon s'est éclaté quand il a touché le sol.
The balloon burst when it hit the ground.
In this context, 'éclaté' is used metaphorically to describe an outburst of laughter.
Après une bonne conversation, il s'est éclaté de rire.
After a good conversation, he burst out laughing.
Here, 'éclaté' describes a vibrant and dynamic atmosphere.