| Subject | English | Japanese |
| gen. | Buchholz protective relay | ブッフホルツ継電器 (Buffuhorutsu-keidenki) |
| gen. | coast protective dune | 前砂丘 |
| law | confidentiality protective order | 秘密保持命令 |
| radiol. | diagnostic-type protective tube housing | 診断型保護管ハウジング |
| construct. | fire protective green belt | 防火植樹帯 (ぼうか・しょくぢゅ・たい) |
| construct. | fire protective green belt | 防火樹 (ぼうか・ぢゅ) |
| gen. | n glass protective film | 飛散防止フィルム |
| pwr.lines. | insulator protective fitting | がいし保護装置 |
| el.gen. | lightning impulse protective level of a surge protective device | 雷インパルス保護レベル サージ保護装置の |
| el., sec.sys. | maximum permissible protective liquid level | 許容最高保護液体レベル |
| el., sec.sys. | minimum permissible protective liquid level | 許容最低保護液体レベル |
| el.mach. | overcurrent protective device | 過電流保護器 |
| electr.eng. | overcurrent protective device for a residual current device | 過電流保護装置 漏電装置用の |
| electr.eng. | overload protective device for a residual current device | 過負荷保護装置 漏電装置用の |
| el., sec.sys. | personal protective equipment | 絶縁用保護具 |
| el., sec.sys. | personal protective equipment | 個人保護用器具 |
| gen. | n placing a minor under protective detention | 観護措置 |
| radiol. | primary protective barrier | 一次防護壁 |
| phys. | protective action | 保護作用 (ほご・さよう) |
| nucl.phys. | protective action in radiation protection | 防護措置 放射線防護上の |
| nucl.phys. | protective action level | 参考レベル |
| tech. | protective agent | 保護剤 (ほござい) |
| gen. | protective antigen | 感染防御抗原 |
| radiol. | protective apron | 防護エプロン |
| gen. | n protective arrest | 保護検束 |
| el.mach. | electrically protective barrier | 保護バリア |
| isol. | electrically protective barrier | 保護バリアー |
| radiol. | protective barrier | 防護壁 |
| el.mach. | electrically protective barrier | 電気的保護バリア |
| isol. | protective bonding conductor | 保安用ボンディング導体 |
| el.mach. | protective bonding conductor | 保護ボンディング導体 |
| tech. | protective cap | 保護帽 (ほごぼう) |
| tech. | protective cap | 保安帽 (ほあんぼう) |
| el.tract. | protective capacitor | 保護コンザンサ |
| law | protective care | 養護 |
| el.tract. | protective circuit | 保護回路 (ほご・かいろ) |
| gen. | n protective clothing | 防護服 |
| weld. | protective clothing and accessories | 防護服及び附属品 |
| construct. | protective coating | 保護被覆 (ほご・ひふく) |
| tech. | protective coating | 防食被覆 (bōshoku-hifuku) |
| gen. | n protective coating | 保護膜 (ほごまく) |
| gen. | n protective collar on kimono or bed clothes | 掛け襟 |
| gen. | protective colloid | 保護コロイド (hogo-koroido) |
| gen. | n protective coloration | 保護色 (hogoshoku) |
| gen. | n protective colouration | 保護色 (hogoshoku) |
| el., mech. | protective conductor identification: PE | ＰＥ 記号 |
| isol. | protective conductor | 保安用導体 |
| el.mach. | protective conductor identification: PE | 保護導体 |
| el.mach. | protective conductor current | 保護導体電流 |
| el., mech. | protective cover | 保護カバー |
| el., mech. | protective cover | シュラウド (shuraudo) |
| tech. | protective cover | 養生仮枠 (ようじょうかりわく) |
| gen. | n protective cover on a clog | 爪革 |
| gen. | n protective cover on a clog | 爪皮 |
| construct. | protective covering | 外装養生 (がいそ・よぢょ) |
| gen. | n protective covering for books, often in the form of a folding case with clasps | 帙 |
| transf. | protective current transformer | 保護用変流器 |
| gen. | n vs protective custody | 輔導 |
| gen. | n vs protective custody | 補導 news2 nf34 |
| phys. | protective device | 保護装置 (hogo-sōchi) |
| transf. | protective device of a capacitor voltage transformer | 保護装置 (hogo-sōchi) |
| construct. | protective device | 保護装 (ほご・そうち) |
| tech. | protective device | 保安装置 (hoan-sōchi) |
| tech. | protective device | プロテクティブ•デパイス |
| gen. | n protective duty | 保護税 |
| isol. | protective earthing | 保安用接地 |
| el.mach. | protective earthing | 保安用接地 |
| el.mach. | protective earthing | 保護接地 |
| isol. | protective earthing and functional bonding conductor | 保安用接地と機能用ボンディング用導体 |
| isol. | protective earthing and functional earthing conductor | 保安用接地と機能用接地導体 |
| isol. | protective earthing conductor | 保安用接地線 |
| el.mach. | protective earthing conductor | 保護接地線 |
| isol. | electrically protective enclosure | 電気的保護囲い |
| el.mach. | electrically protective enclosure | 保護エンクロージャ |
| el.mach. | electrically protective enclosure | 電気的保護エンクロージャ |
| construct. | protective equipment | 保護具 (ほご・ぐ) |
| isol. | protective equipotential bonding system | 保安用等電位ボンディングシステム |
| el.mach. | protective equipotential bonding system | 保護等電位ボンディングシステム |
| isol. | protective-equipotential-bonding | 保安用等電位ボンディング |
| el.mach. | protective-equipotential-bonding | 保護等電位ボンディング |
| construct. | protective facility | 防護施設 (ぼうご・しせつ) |
| construct. | protective film | 保護被膜 (ほご・ひまく) |
| gen. | n protective film | 保護膜 (ほごまく) |
| nucl.phys. | protective function in radiation protection | 防護機能 放射線防護の |
| ecol. | protective function | 保護機能 |
| el., sec.sys. | protective gas | 保護ガス |
| el., sec.sys. | protective gas supply | 保護ガス供給装置 |
| light. | protective glass | ランプ保護カバー |
| construct. | protective glass | 保護ガラス (hogo-garasu) |
| construct. | protective glasses | 保護眼鏡 (hogo-megane) |
| radiol. | protective gloves | 防護手袋 |
| tech. | protective gloves | 保護手袋 (ほごてぶくろ) |
| el.mach. | protective grounding | 保安用接地 |
| isol. | protective grounding | 保安用接地 |
| el.mach. | protective grounding | 保護接地 |
| isol. | protective grounding and functional bonding conductor | 保安用接地と機能用ボンディング用導体 |
| isol. | protective grounding and functional grounding conductor | 保安用接地と機能用接地導体 |
| isol. | protective grounding conductor | 保安用接地線 |
| el.mach. | protective grounding conductor | 保護接地線 |
| gen. | n protective headgear | ヘル・メット |
| gen. | n protective headgear | ヘルメット gai1 (herumetto) |
| gen. | n protective hood worn during earthquakes and other disasters | 防災頭巾 (e.g. to protect from falling objects) |
| gen. | n protective household deity in Tohoku, appearing as a red-faced child spirit with bobbed-hair | 座敷童子 |
| gen. | n protective household deity in Tohoku, appearing as a red-faced child spirit with bobbed-hair | 座敷童 |
| electr.eng. | protective impedance | 保護インピーダンス |
| el.mach. | protective impedance device | 保護インピーダンス装置 |
| cables | protective overall jacket North America | 非金属外部シース |
| gen. | protective layer | 保護層 (ほごそう) |
| el., sec.sys. | protective liquid | 保護液体 |
| gen. | n protective mask | 防護マスク |
| radiol. | protective material | 防護材料 |
| comp., MS | Protective MBR | プロテクティブ MBR (The first sector of a GUID partition table (GPT) disk that is structured like the first sector of a master boot record (MBR) disk to prevent x86-based disk utilities from destroying GPT partitions. The Protective MBR contains one partition that reserves the entire space used on the disk by GPT partitions) |
| comp. | n protective MBR | プロテクティブＭＢＲ |
| risk.man. | protective measure | 保護方策 |
| law | protective measure | 保護処分 |
| gen. | protective measures | 予備措置 |
| gen. | protective measures | 予防措置 |
| tech. | protective mortar | 保護モルタル (ほごモルタル) |
| gen. | protective mound and structure | 水塚 |
| construct. | protective net | 飛散防止ネッ卜 (ひさん・ぼうし・ねっと) |
| el.mach. | electrically protective obstacle | 保護オブスタクル |
| isol. | electrically protective obstacle | 保護障害物 |
| el.mach. | electrically protective obstacle | 電気的保護オブスタクル |
| gen. | n protective occupation | 保障占領 (of a country) |
| law | protective order | 秘密保持命令 |
| gen. | n protective plate | 保護板 (ほご・ばん) |
| gen. | protective relay | 保護継電器 (hogo-keidenki) |
| gen. | protective relaying system | 保護継電方式 |
| tech. | protective scaffold | 養生足場 (ようじょうあしば) |
| gen. | n protective scaffolding | 素屋根 |
| el.mach. | electrically protective screen | 保護遮へい物 |
| el.mach. | electrically protective screen | 電気に対する保護遮へい物 |
| isol. | electrically protective screen | 保護遮蔽用導電体 |
| construct. | protective screen | 養生金網 (ようじょう・かなあみ) |
| el.mach. | electrically protective screening | 保護遮へい |
| isol. | electrically protective screening | 保護遮蔽 |
| el.mach. | electrically protective screening | 電気的保護遮へい |
| el.mach. | electrically protective separation | 保護分離 |
| el.mach. | electrically protective separation | 電気的保護分離 |
| gen. | protective sheath | 保護シース |
| tech. | protective shelf | 養生朝顔 (ようじょうあさがお) |
| el.mach. | electrically protective shield | 電気に対する保護遮へい物 |
| el.mach. | electrically protective shield | 保護遮へい物 |
| child. | n obsc protective shield | ミッキバリヤ (in children's games) |
| child. | n obsc protective shield | ミッキバリアー (in children's games) |
| isol. | electrically protective shield | 保護遮蔽用導電体 |
| child. | n obsc protective shield | ミッキバリア (in children's games) |
| el.mach. | electrically protective shielding | 保護遮へい |
| isol. | electrically protective shielding | 保護遮蔽 |
| el.mach. | electrically protective shielding | 電気的保護遮へい |
| comp. | n protective sleeve | 保護用スリーブ |
| el.gen. | protective spark gap | 保護用スパークギャップ |
| gen. | protective structures | 防護構造物 |
| gen. | n protective tariff | 保護関税率 |
| gen. | n protective tariff | 保護関税 (ほごかんぜい) |
| gen. | n protective trade | 保護貿易 news2 nf29 (ほごぼうえき) |
| transf. | protective voltage transformer | 保護用変圧器 |
| gen. | n protective wall | 防護壁 |
| gen. | n protective wall | 防壁 |
| gen. | protective work | 救済事業 |
| radiol. | secondary protective barrier | 二次防護壁 |
| railw., sec.sys. | selective protective points | 一方向開放ポイント |
| electr.eng. | short-circuit protective device for a residual current device | 短絡保護装置 漏電装置用の |
| gen. | slope protective works | 法覆工 (のりおおいこう) |
| tech. | soil-protective turf grass | 土止芝付 (つちどめしばづけ) |
| radiol. | structural protective barrier | 構造体防護壁 |
| el.gen. | surge protective device | サージ保護装置 |
| el.gen. | switching impulse protective level of a surge protective device | 開閉インパルス保護レベル サージ保護装置の |
| radiol. | therapeutic-type protective tube housing | 治療型保護管ハウジング |