成句・複合語：
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| be under evaluation v expr | (be tested or assessed) (物) | 試行中である
HHiraganaしこうちゅうである |
| | (人) | 評価期間中である
HHiraganaひょうかきかんちゅうである |
| | The new plan is under evaluation for its cost effectiveness. |
| be under guarantee v expr | (be covered by a warranty) | 保証期間中である
HHiraganaほしょうきかんちゅうである |
| | I didn't have to pay for repairs because the washing machine was still under guarantee. |
| be under review v expr | (be examined or reconsidered) | 審査中である、検討中である
HHiraganaしんさちゅうである、けんとうちゅうである |
| | The proposed changes to the law are still under review. |
| be under warranty v expr | (be covered by a written guarantee) | 保証期間中である
HHiraganaほしょうきかんちゅうである |
| | My computer worked great as long as it was under warranty; then it died a month after the warranty expired. |
| buckle under vi | informal (give in, consent) | 降参する、あきらめる 自動
HHiraganaこうさんする、あきらめる |
| | I finally buckled under the pressure and quit the organization. |
| call [sb] every name under the sun v expr | figurative (repeatedly insult [sb]) | ～の悪口雑言を言う、～に悪態をつく
HHiragana～のあっこうぞうげんをいう、～にあくたいをつく |
| | (口語) | ～をくそみそに言う
HHiragana～をくそみそにいう |
| | You can call me every name under the sun, but it doesn't change the situation one bit. |
| come under [sth] v expr | (be categorized, grouped within) | ～の部類［ジャンル］に入る 動詞句
HHiragana～のぶるい［じゃんる］にはいる |
| | This report comes under the heading of "Finance", so it can be filed in that folder. |
| come under v expr | (be exposed to, suffer) | 遭う、受ける、さらされる 自動
HHiraganaあう、うける、さらされる |
| | The squadron came under attack. |
| | The policy came under intense scrutiny. |
| dig out from under [sth] v expr | US, figurative (complete accumulated tasks) (仕事など) | （溜まった仕事など）～を仕上げる 他動
HHiragana（たまったしごとなど）～をしあげる |
| | Once I've dug out from under this backlog of paperwork, you and I will celebrate by going out to lunch. |
| | 私がこの溜まりに溜まった事務処理を仕上げたら、一緒に昼食を食べに行ってお祝いしよう。 |
| dig [sth] out from under [sth] v expr | (clear accumulated disorder, dirt) | （溜まったゴミなど）～を取り除く 他動
HHiragana（たまったごみなど）～をとりのぞく |
| | They had to dig their boat out from under the mud left by the flood. |
| | 彼らは、洪水により残された泥を取り除きボートを探し出す必要があった。 |
| down under adv | informal (in, to Australia, New Zealand) | オーストラリアに、ニュージーランドに 副
HHiraganaおーすとらりあに、にゅーじーらんどに |
| | I'm moving to start a new life down under. |
| | 新しい生活を始めるため、オーストラリアに移住するつもりです。 |
duck under [sth],
duck behind [sth] vi + prep | (dive, hide) (物の影・下に) | 隠れる 自動
HHiraganaかくれる |
| | To avoid saying hello, he ducked under a desk. |
| duck under [sth] vi + prep | (plunge into water) | 水に頭を突っ込む、ひょいと潜る 動詞句
HHiraganaみずにあたまをつっこむ、ひょいともぐる |
| | Ryan ducked under the water and resurfaced a few seconds later. |
| DUI n | US, uncountable, written, initialism (driving under the influence) | 飲酒及び（または）麻薬の影響下の運転、酒気帯び運転 名
HHiraganaいんしゅおよび（または）まやくのえいきょうかのうんてん、しゅきおびうんてん |
| | In this state, driving under the influence is punishable by up to a year in jail. |
| go under [sth] vi + prep | (figure: go lower than) | 下回る、割る 他動
HHiraganaしたまわる、わる |
| | Viewing figures went under 10 million after the lead actor left the show. |
| hot under the collar adj | slang, figurative (angry, agitated) | 腹を立てる、カッとする 動詞句
HHiraganaはらをたてる、かっとする |
| | He got very hot under the collar when I politely suggested he might be mistaken. |
| keep [sth] under wraps v expr | figurative, informal (not reveal) | ～を隠しておく 表
HHiragana～をかくしておく |
| | | ～を秘密にしておく 表
HHiragana～をひみつにしておく |
| | The company is keeping the latest model under wraps until the official launch. |
| keep [sth] under wraps v expr | (statue: cover up) | ～に覆いをかぶせる 表
HHiragana～におおいをかぶせる |
| | The museum is keeping the statue under wraps while restoration work continues. |
| six feet under adj | (dead and buried) | 埋葬されて 形
HHiraganaまいそうされて |
| six feet under adv | (in one's grave) | 埋葬された 副
HHiraganaまいそうされた |
| statement under oath n | ([sth] sworn to be true) | 宣誓下での供述［発言］ 名
HHiraganaせんせいかでのきょうじゅつ［はつげん］ |
| | If you make a false statement under oath, you can be charged with perjury. |
under a cloud of suspicion,
under a cloud adv | (suspected of guilt, mistrusted) | 疑惑の渦中で 副
HHiraganaぎわくのかちゅうで |
| | He was under a cloud of suspicion. |
| under active consideration adv | (being deliberated) | 検討中で、審議中で 副
HHiraganaけんとうちゅうで、しんぎちゅうで |
| | Thank you for submitting your resume for the job position; your credentials are under active consideration. |
| under advisement adv | US (into consideration) | 考慮に 連用句
HHiraganaこうりょに |
| | I hope he will take the new information under advisement. |
| under arms adv | (ready for armed combat) | （戦闘用に）武装して 副
HHiragana（せんとうように）ぶそうして |
| under attack adv | (subjected to physical aggression) | 攻撃を受ける 動詞句
HHiraganaこうげきをうける |
| | They became aware that the castle was under attack. |
| under attack adv | figurative (subjected to criticism) | 非難を浴びる 動詞句
HHiraganaひなんをあびる |
| | His critique of the policy is under attack from the conservatives. |
| under close surveillance adv | (being watched intently) | 監視して 副
HHiraganaかんしして |
| | The government kept the official under close surveillance. |
| under close surveillance adj | (watched intently) | 監視する［している］ 形
HHiraganaかんしする［している］ |
| under compulsion adv | (as an obligation) | 強制されて 副
HHiraganaきょうせいされて |
| | Confessions obtained under compulsion are illegal. |
| under consideration adv | (being deliberated) | 考慮中である、検討中である 動詞句
HHiraganaこうりょちゅうである、けんとうちゅうである |
| | A new road is under consideration to reduce congestion. |
| | Your suggestions are currently under consideration. |
| under construction adv | (currently being built) | 工事中である 動詞句
HHiraganaこうじちゅうである |
| | The new hospital is currently under construction. |
| | The website is under construction. |
| under control adv | (being managed) | 支配下［管理下］にある、統制されている 動詞句
HHiraganaしはいか［かんりか］にある、とうせいされている |
| | Don't worry, I've got everything under control here at the office. |
| under detention adv | (in custody) | 拘留されて、拘留中で 副
HHiraganaこうりゅうされて、こうりゅうちゅうで |
| under escort adv | (with armed accompaniment) | 護衛付きで 副
HHiraganaごえいつきで |
| under lock and key adv | (to or in prison) | 投獄されて、刑務所に入って 副
HHiraganaとうごくされて、けいむしょにはいって |
| | This type of deviant behaviour will get you put under lock and key. |
| under lock and key adj | (person: in prison) | 懲役中の、入所中の 形
HHiraganaちょうえきちゅうの、にゅうしょちゅうの |
| | He's under lock and key after he committed that robbery last year. |
| under lock and key adj | (thing: locked away) | （厳重に）保管［管理］された 形
HHiragana（げんじゅうに）ほかん［かんり］された |
| | I want you to stop overspending so I put your credit card under lock and key. |
| under no circumstances adv | (not for any reason) | どんな理由でも［事情があっても］～ない 副
HHiraganaどんなりゆうでも［じじょうがあっても］～ない |
| | Under no circumstances should Johnny eat sweets today. |
| under obligation adv | (compulsorily) | 強制されて、義務を負わせられて 副
HHiraganaきょうせいされて、ぎむをおわせられて |
| | If we sign the treaty, we are under obligation to reduce pollution by 10% in 10 years. |
| under penalty of prep | (risking punishment by) | ～の罰［報い］を受ける覚悟で
HHiragana～のばつ［むくい］をうけるかくごで |
| | We declare under penalty of perjury that these statements are correct. |
| under pressure adv | (subjected to coercion) (精神的) | プレッシャーをかけられて、追い詰められて 副
HHiraganaぷれっしゃーをかけられて、おいつめられて |
| | (比喩) | （精神的）圧力をかけられて 副
HHiragana（せいしんてき）あつりょくをかけられて |
| | He was under pressure to make a decision so he finally said "yes.". |
under secretary,
under-secretary,
undersecretary n | US (subordinate to principal secretary) (米行政) | 次官 名
HHiraganaじかん |
| 注釈: Often capitalized. |
under secretary,
under-secretary,
undersecretary n | UK (UK government official) (イギリス・政治) | 政務次官 名
HHiraganaせいむじかん |
| 注釈: Often capitalized. |
| under siege adv | (being surrounded and attacked) | 包囲されて 副
HHiraganaほういされて |
| | The city was under siege for months before its people finally surrendered. |
| under supervision adv | (being watched or monitored) | 監督下で、管理下で 副
HHiraganaかんとくかで、かんりかで |
| under surveillance adv | (under close observation) | 監視下で、見張り付きで 副
HHiraganaかんしかで、みはりつきで |
| | The police had the gang under surveillance for several weeks. |
| | We're keeping those two men under surveillance. |
| under surveillance adj | (being closely observed) | 監視下の、見張り付きの 形
HHiraganaかんしかの、みはりつきの |
| | The building was under surveillance for a long time. |
under the aegis of [sth/sb],
under the egis of [sth/sb],
under [sb]'s aegis,
under [sb]'s egis expr | formal (guided or protected by) | ～の庇護の下にある、～の保護を受ける 動詞句
HHiragana～のひごのもとにある、～のほごをうける |
| | This child is now under the aegis of the court. |
| under the auspices of prep | (being guided or supported by) | ～の後援［支援、賛助］で、～の主催で
HHiragana～のこうえん［しえん、さんじょ］で、～のしゅさいで |
| under the authority of [sb/sth] expr | (being guided by) | ～の主導の下 表
HHiragana～のしゅどうのもと |
| under the authority of [sb/sth] expr | (within the control of) | ～の支配［権限］下で［に］ 表
HHiragana～のしはい［けんげん］かで［に］ |
| under the cloak of [sth] expr | (being protected by) | ～の庇護の下 副
HHiragana～のひごのもと |
| | The candidate accused her opponent of pursuing his own interests under the cloak of patriotism. |
| under the influence adj | (affected or controlled) | ～に影響された 形
HHiragana～にえいきょうされた |
| | Under the influence of communist rhetoric, Peter refused to consider the positive aspects of capitalism. |
| under the influence adj | (intoxicated) | 薬物［アルコール、麻薬］の影響下の 形
HHiraganaやくぶつ［あるこーる、まやく］のえいきょうかの |
| | He got pulled over by the police because he was driving while under the influence. |
| under the law adv | (from a legal point of view) | 法の下で、法律の下で、法律に基づいて 副
HHiraganaほうのもとで、ほうりつのもとで、ほうりつにもとづいて |
| under the leadership of [sb] adv | (with [sb]'s management or guidance) (人) | ～の指導の下に、～の指揮の下に、～のリーダーシップの下に 副
HHiragana～のしどうのもとに、～のしきのもとに、～のりーだーしっぷのもとに |
| under the protection of prep | (being guided or supported by) | ～の庇護の下で、～の保護を受けて
HHiragana～のひごのもとで、～のほごをうけて |
| under the pump expr | AU, informal (under pressure) | プレッシャーをかけられる、重圧をかけられる、追いつめられる 動詞句
HHiraganaぷれっしゃーをかけられる、じゅうあつをかけられる、おいつめられる |
| under the stars adv | (outdoors, in the open air) | 星空の下で 副
HHiraganaほしぞらのしたで |
| | I love sleeping outside under the stars. |
| under the sun adv | (in the solar system) | 太陽の下で、野外で 副
HHiraganaたいようのしたで、やがいで |
| | I've tried everything under the sun, and I still can't find a solution. |
| under the surface adv | (beneath the top layer) | 表面下で［に］ 副
HHiraganaひょうめんかで［に］ |
| | She maintains a calm exterior but harbors a lot of anger just under the surface. |
| under the weather adj | figurative, informal (unwell) | 具合が悪い、調子が悪い 形
HHiraganaぐあいがわるい、ちょうしがわるい |
| | I didn't go to work today because I was feeling under the weather. |
| under the wing of prep | (being guided or protected by) | ～の庇護の下で、～の保護を受けて
HHiragana～のひごのもとで、～のほごをうけて |
| | The young student made rapid progress after he was taken under the wing of the master chef. |
| under your care adv | (in your charge) | 責任を持って、面倒を見て 副
HHiraganaせきにんをもって、めんどうをみて |
| | You should notify all the patients under your care that you are leaving this office. |
| under your command adv | (in your charge or control) (比喩) | ～の指揮下［支配下］で［に］ 副
HHiragana～のしきか［しはいか］で［に］ |
| | The major was responsible for all of the troops under his command. |
| under your control adv | (in your charge or command) (比喩) | ～の指揮下［支配下］で［に］ 副
HHiragana～のしきか［しはいか］で［に］ |
| | Well, I'm going out for the evening, the kids are under your control! |
underachieve,
under-achieve vi | (perform poorly) | 期待したほど成果がでない 自動
HHiraganaきたいしたほどせいかがでない |
| | (学生) | 予想より低い成績をとる 自動
HHiraganaよそうよりひくいせいせきをとる |
| | Children from poor families are more likely to underachieve at school. |
underachiever,
under-achiever n | ([sb] who performs poorly) | 期待する成果をあげられない人 名
HHiraganaきたいするせいかをあげられないひと |
| | (学生) | 予想より低い成績をとる人 名
HHiraganaよそうよりひくいせいせきをとるひと |
| | (学生) | 劣等性、成績の悪い生徒 名
HHiraganaれっとうせい、せいせきのわるいせいと |
| | Teresa was an underachiever at college and left with very poor grades. |
underage,
under-age adj | (person: legally too young) (法律) | 未成年の、法定年齢に達しない 形
HHiraganaみせいねんの、ほうていねんれいにたっしない |
| | It is against the law to buy alcohol for people who are underage. |
underage,
under-age adj | (act: involving a minor) | 未成年者の 形
HHiraganaみせいねんしゃの |
| | Underage sex is illegal in many countries. |
underage drinking,
under-age n | (alcohol consumption by minors) | 未成年による飲酒 名
HHiraganaみせいねんによるいんしゅ |
| | This leaflet on underage drinking contains advice for parents of teenage children. |
| undercover adj | (agent, policeman: spying) (捜査など) | スパイ活動の、秘密で行われる、諜報活動の 形
HHiraganaすぱいかつどうの、ひみつでおこなわれる、ちょうほうかつどうの |
| | An undercover agent agreed to sell him narcotics. |
| undercover adj | (operation: secret, clandestine) (作戦など) | 秘密の、内々の、内密の 形
HHiraganaひみつの、うちうちの、ないみつの |
| | The undercover operation was aimed at infiltrating terrorists. |
| undercover adv | (operation: in secret) (作戦など) | 秘密裏に 副
HHiraganaひみつりに |
| | Police went undercover to learn how the bribery scheme worked. |
underfoot,
under foot adv | (on the ground, under your feet) | 足の下に、地面に 副
HHiraganaあしのしたに、じめんに |
| | Sharon liked the sound of snow crunching underfoot. |
underway,
under way adv | (moving) | 移動中 名
HHiraganaいどうちゅう |
| | Finally, everyone was in the car and we were underway. |
underway,
under way adv | (nautical: moving in water) | 航行中 名
HHiraganaこうこうちゅう |