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