This is the 3218th most frequent Catalan word.
riure
To laugh.
Here 'riure' is used as an infinitive verb meaning 'to laugh'.
M'encanta riure amb els meus amics.
I love laughing with my friends.
Here 'riure' is used as a noun meaning 'laughter'.
El riure descontrolat és contagiós.
Uncontrollable laughter is contagious.
Here 'riuen' is the conjugated form of 'riure', which is used as an action verb describing the act of laughing.