探讨
tàntǎo · HSK 6
to investigate; to probe
🔍 probe + discuss = dig into a topic through talk
探 means to probe or reach out; 讨 means to discuss or demand. Together: reaching into a subject through structured discussion to uncover deeper understanding.
探 — hand radical 扌 + 罙 (depth/cave)
探 combines the hand radical 扌 with 罙, which depicts a hand reaching into a cave or deep place. The original sense was reaching in to feel for or retrieve something hidden, which extended to 'probe,' 'search,' and 'explore.' 罙 also hints at the sound.
讨 — speech radical 讠 + inch 寸
A semantic-phonetic compound combining 讠 (speech) with 寸 (a hand/measure), suggesting demanding or seeking through words. The original sense was to denounce or punish verbally, which broadened over time to mean 'to demand,' 'to ask for,' and 'to discuss.' Modern uses like 讨论 (discuss) and 讨厌 (detest) reflect this range.