Example : How would you classify these pottery shards--are they prehistoric?.

Synonyms : assort, class, classify, separate, sort

Example : Could you clarify these remarks?.
Clear up the question of who is at fault.

Synonyms : clear, clear up, crystalise, crystalize, crystallise, crystallize, elucidate, enlighten, illuminate, shed light on, straighten out

Example : The teacher disciplined the pupils rather frequently.

Synonyms : correct, discipline