grinninggerund / present participle Participial adjective derived from the verb 'grin', describing something or someone that is smiling broadly.
The grinning child was excited about the surprise.
Улыбающийся ребенок был в восторге от сюрприза.
The grinning cat sat on the windowsill.
Ухмыляющийся кот сидел на подоконнике.
Gerund form functioning as a noun, meaning the act or state of smiling broadly.