防守
fáng shoǔ · HSK 6
to defend
🛡️ 防守 = 防 (defend/prevent) + 守 (guard); defend + guard = to defend
防 means to prevent or guard against; 守 means to keep watch or hold. Together they reinforce each other: the verb pair covers defending a position and protecting it from attack.
防 — mound radical 阝(阜) + 方 fāng (phonetic)
防 is a semantic-phonetic compound. The left element 阝 (from 阜) depicts a mound or earthen embankment, suggesting barriers and defense. The right element 方 supplies the sound. Together they evoke a dike or rampart that guards against floods or attacks, hence 'to guard, prevent, defend'.
守 — roof 宀 + hand/measure 寸
Originally depicts a hand (寸) under a roof (宀), suggesting someone guarding or maintaining a household. The combination evokes the idea of holding or keeping watch over a place. From this concrete image of guarding a home, the meaning broadened to 'guard,' 'protect,' 'keep,' and 'observe (rules).'