a wide smile She gave a broad grin. a wry/sheepish grin ‘No,’ he said with a grin. Take that grin off your face! See related entries: Facial expressions Word Origin Old English grennian ‘bare the teeth in pain or anger’, of Germanic origin; probably related to groan.Extra examples A mischievous grin spread across the little girl’s face. Edmund looked up with an impish grin. He forced a grin despite feeling angry. He gave the photographer a big grin. He grinned his adorable grin. He had a cheeky grin. Her grin turned into a frown. Her lips started to form a slight grin. His wry grin faded. I wondered why Dad had a grin on his face. I’ll soon wipe that silly grin off her face. She tried to stifle a grin. Take that grin off your face! The old man’s face broke into a grin. a grin at his wife a grin of triumph a grin tugging at the corners of his lips She gave a broad grin.