ガードgaado

1. noun, suru verb, transitive verbguarding; guard

• Synonym防衛ぼうえいNeutralDefense, especially defending one's country; also used for defending a title, as in 「タイトル防衛」. 「ガード」 usually refers to personal defense or security work.
• Synonym警戒けいかいNeutralStaying on guard against danger or disaster in advance, as in 「警戒警報」. 「ガード」 puts more weight on actually protecting someone or something.
• Synonym警備けいびNeutralGuarding a place or event against trouble, as in 「警備員」; somewhat formal. 「ガードマン」 is simply the loanword way of saying 「警備員」.
• Synonym防護ぼうごWrittenWritten: keeping harm from reaching you, as in 「防護服」, usually against disasters or hazardous substances; 「ガード」 mostly protects against people.
• Synonym警護けいごWrittenWritten: guarding VIPs, as in 「要人警護」. 「ガード」 is colloquial; close personal protection is also called 「ボディーガード」.
• Synonym守護しゅごWrittenWritten: protection or guardianship, as in 「守護神」; also a military governor post under the Kamakura and Muromachi shogunates. 「ガード」 is an everyday loanword.
• Synonym守備しゅびNeutralDefending against an enemy attack; also fielding in baseball, as in 「守備位置」. 「ガード」 can additionally refer to security guards.
• Synonym防御ぼうぎょNeutralHolding off enemy attacks, as in 「防御率」; focused on countering attacks. 「ガード」 also carries the sense of guarding or watching over.
• Synonym護衛ごえいNeutralProtecting someone by staying at their side; also the person doing so, as in 「護衛艦」. Close to the escort sense of 「ガード」 but more formal.
• Synonym守るまもるNeutralVerb: the most basic word for protecting, and also for keeping promises, as in 「身を守る」 and 「約束を守る」; the broadest of these words.
• Synonym警衛けいえいWrittenWritten word for guarding and escorting, often official duty at the Imperial Palace or other key sites; rare today. 「ガード」 is the everyday, general term.
• Related監視かんしNeutralWatching closely to catch anything unusual, as in 「監視カメラ」; no sense of physically blocking someone. 「ガード」 centers on protecting and holding the opponent off.
• Related見守るみまもるNeutralVerb: watching over someone so they stay safe, or quietly following how things turn out, as in 「子供を見守る」. Gentle in tone, with no sense of defense.
• Related見張るみはるNeutralVerb: standing watch or keeping a lookout, as in 「入口を見張る」; can also mean opening one's eyes wide. 「ガード」 centers on protecting and blocking.
• Related防ぐふせぐNeutralVerb: warding off harm or keeping bad things from happening, as in 「失点を防ぐ」. 「ガード」 is a noun and can take する.
• Related用心ようじんNeutralBeing careful against the unexpected, as in 「火の用心」; mainly mental vigilance. 「ガード」 leans toward actual guarding.
• Related防ぎふせぎCasualColloquial noun for defense or prevention; rarely used alone — everyday speech prefers the verb 「防ぐ」. 「ガード」 can also refer to a person.

Use 「ガード」 for defense, guarding, and security, as in 「ガードが堅い」. For national defense say 「防衛」; for guarding a place or event, 「警備」; for protecting VIPs, 「警護」; for everyday protection, 「守る」. The others cover narrower or more written senses — watching, vigilance, or warding off attacks — so pick by what is being protected and how.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 守備しゅび。護衛ごえい。監視かんし。警戒けいかい。また、それらをする者もの。ガードマン。
2. 前列ぜんれつでセンターの左右さゆうにいる者もの。
3. 後衛こうえい。
4. 受うけの構かまえ。防御ぼうぎょ。
5. マーチングバンドにおいて、旗はたなどの道具どうぐを使つかって演技えんぎをするパート。カラーガード。