灭顶之灾

• 氵(water; liquid)RADICAL
• 烕(extinguish fire; put out fire)PHONETIC

Using water to extinguish fire is a complete act of destruction.

• 頁(head; page)RADICAL
• 丁(nail)PHONETIC

The head points like a nail driven straight into the highest part of the body.

• 之(walk; arrive; step on ground)ASSOCIATIVE

A footstep moving forward on the ground represents "go to," which then becomes a grammatical particle.

• 火(fire)RADICAL
• 巛(water current; flood)ASSOCIATIVE

Disaster strikes when both flood and fire descend upon the land together.