| 维护 | wei2 hu4 | to defend |
| 国防 | guo2 fang2 | national defense |
| 突破 | tu1 po4 | to surmount or break the back of (a task etc) |
| 自卫 | zi4 wei4 | self-defense |
| 防御 | fang2 yu4 | defense |
| 防卫 | fang2 wei4 | to defend |
| 防部 | fang2 bu4 | defense department |
| 四个现代化 | si4 ge4 xian4 dai4 hua4 | abbr. to 四化 |
| 辩护 | bian4 hu4 | to defend |
| 边防 | bian1 fang2 | border defense |
| 防空 | fang2 kong1 | anti-aircraft defense |
| 防务 | fang2 wu4 | pertaining to defense |
| 武术 | wu3 shu4 | self-defense |