laughinggerund / present participle Present participle of the verb "laugh", used adjectivally.
Her laughing eyes were full of joy.
Ее веселые глаза были полны радости.
The laughing child brightened up the room.
Смеющийся ребенок оживил комнату.
laughgerund / present participle Added to account for the participial adjective form "laughing" (e.g., "a laughing child").