كشر

3 كاشرهُ ذ , (A, K,) inf. n. مُكَاشَرَةٌ, (A,) He displayed his teeth to him, or grinned to him: (K:) or he laughed in his face; and conversed, or acted with him without shyness or aversion, boldly, or in a free and easy, or cheerful, manner (وَبَاسَطَهُ). (TA.)