| Word | Reading | Meaning | Level |
|---|
| 防ぐ | ふせぐ | to defend against, prevent | N4 |
| 防水 | ぼうすい | waterproofing | N3 |
| 防止 | ぼうし | prevention | N3 |
| 防護 | ぼうご | protection, safeguarding | N3 |
| 予防 | よぼう | prevention, prophylaxis | N3 |
| 防護眼鏡 | ぼうごめがね | protective goggles | N3 |
| 消防組 | しょうぼうぐみ | fire brigade | N3 |
| 堤防 | ていぼう | river levee, embankment | N3 |
| 防水布 | ぼうすいふ | waterproof cloth, tarpaulin | N3 |
| 防滴 | ぼうてき | drip-proof | N2 |
| 防御 | ぼうぎょ | defense | N2 |
| 再発防止 | さいはつぼうし | preventing a recurrence | N2 |
| 防風 | ぼうふう | windshield, windproofing | N2 |
| 防災 | ぼうさい | disaster prevention | N2 |
| 消防 | しょうぼう | fire service | N2 |
| 防戦 | ぼうせん | defensive fight, defending against | N1 |
| 逸脱防止 | いつだつぼうし | prevention of deviation | N1 |
| 攻防 | こうぼう | battle of offense and defense | N1 |
| 混乱防止 | こんらんぼうし | prevention of disorder | N1 |
| 防護壁 | ぼうごへき | protective wall, firewall | N1 |
| 防波堤 | ぼうはてい | breakwater, protective buffer | N1 |
| 防衛線 | ぼうえいせん | defensive line | N1 |
| 防衛ライン | ぼうえいライン | defense line | N1 |
| 防衛力 | ぼうえいりょく | defense capability | N1 |
