مُضَاحَكَةٌ

[verbal noun of ضاحكهُ] signifies [The contending, or vying, in laughing, with another; or the laughing with another; or] the laughing together. (KL.)

[Hence,] one says, النَّوْرُ يُضَاحِكُ الشَّمْسَ (assumed tropical:) [The flowers vie in brightness with the sun]. (TA.)

And إِنَّ رَأْيَكَ لَيُضَاحِكُ المُشْكِلَاتِ (tropical:) [Verily thy judgment makes sport with ambiguities]; said to him to whom confused and dubious things are apparent and known. (TA.)