正当防卫

• 一(straight line; boundary; destination)ASSOCIATIVE
• 止(stop; foot)RADICAL

A foot stopping exactly at the line is straightness and precision.

• 口(mouth; sound)RADICAL
• 當(equivalent; opportune)PHONETIC

The sound of a bell ringing from an opening makes a "clanging" noise that rings out at just the right moment.

• 阝(earthen mound; rampart)RADICAL
• 方(direction; side)PHONO-SEMANTIC

Build fortifications on all sides to defend against enemies.