Verbs

(v)classify, class, sort, assort, sort out, separatearrange or order by classes or categories“How would you classify these pottery shards — are they prehistoric?”
(v)clear, clear up, shed light on, crystallize, crystallise, crystalize, crystalise, straighten out, sort out, enlighten, illuminate, elucidatemake free from confusion or ambiguity; make clear“Could you clarify these remarks?”, “Clear up the question of who is at fault”
(v)discipline, correct, sort outpunish in order to gain control or enforce obedience“The teacher disciplined the pupils rather frequently”