to discuss; to talk over
讨 (tǎo) · 5 strokes
Simplified form of 討. Depicts using speech (言) and one's hands (寸) to manage or govern. The meaning later shifted to "discuss" and "ask for".
论 (Lún) · 6 strokes
Simplified form of 論. Phonosemantic compound. 言 represents the meaning and 侖 represents the sound.