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alert
4 ENTRIES FOUND:
Learner's definition of ALERT
[more alert; most alert]
: able to think clearly and to notice things机敏的；机警的；警觉的 — often + to
- An alert guard stopped the robbers.机警的门卫拦住了劫匪。
- The nurse kept/stayed alert for any change [=watched for any change] in the patient's condition.护士对病人病情的任何变化时刻保持警觉。
- He was tired and had trouble staying alert while he was driving.他很疲倦，开车时无法保持警觉。
- She wasn't mentally alert enough to answer the questions.她头脑不够机敏，回答不了这些问题。
- an alert mind机敏的头脑
- An alert watchdog guarded the door.一只警觉的看门狗看守着大门。
- The nurse should be alert to any change in the patient's condition.护士应该对病人病情的任何变化都保持警觉。
- He is alert to [=aware of] his duties as a father.他很清楚做父亲的责任。
— alertly
adverb- A watchdog alertly guarded the door.一只看门狗警觉地看守着大门。
— alertness
noun [noncount] 2 alert /əˈlɚt/ noun
plural alerts
2 alert
/əˈlɚt/
noun
plural alerts
Learner's definition of ALERT
1
[count] : something (such as a message or loud sound) that tells people there is some danger or problem : an alarm or signal of danger警告；警报；警示信号
- They sounded an alert when enemy planes were approaching the city.敌机接近城市时，他们发出了警报信号。
- Medical officials have put out an alert to hospitals to look out for the virus.卫生官员已向各家医院发出警告，要小心这种病毒。
- The government has issued a terrorism/security alert.政府已发出恐怖袭击/安全警告。
2
[noncount] : the state of being ready for something you have been warned about (such as an attack)警戒；警惕；戒备— used with on与On连用 — see also red alert
- We need to be on alert for any sudden changes.我们需要密切注意任何突发情况。
- The attack could come at any time, so the soldiers need to be on full alert.进攻随时都有可能发生，因此士兵需要时刻保持高度警惕。
- The recently flooded community is again on high alert as more rain is expected.预计更多的雨水将至，因此近期遭受洪涝灾害的地区再次处于高度戒备状态。
on the alert
: looking for or expecting something (such as danger or an opportunity)警戒状态；密切注意着 — often + for
- The soldiers need to be on the alert at all times.士兵们需要时刻保持警惕。
- When you're driving in winter you should always be on the alert for icy conditions.冬天驾车时你应该时刻警惕出现路面结冰的情况。
- I'm always on the alert for a good bargain.我一直留意着淘件便宜货。
3 alert /əˈlɚt/ verb
alerts; alerted; alerting
3 alert
/əˈlɚt/
verb
alerts; alerted; alerting
Learner's definition of ALERT
[+ object]
1
: to give (someone) important information about a possible problem, danger, etc. : to warn (someone)向…报警，使警觉；使警惕
- Several neighbors alerted the authorities/police when they noticed strangers acting suspiciously.几个邻居注意到一些鬼鬼祟祟的陌生人，立即报告了当局/警方。
- The governor alerted island residents that a hurricane was coming.州长警告岛上居民飓风即将来临。
2
: to make (someone) aware of something提示，提醒（某人） — often + to
- The teacher alerted the students that tests would be given the next day.老师提醒学生第二天要进行测验。
- A friend recently alerted me to the existence of a new museum in my city.一个朋友最近提醒我说在我居住的城市有一座新的博物馆。
- We need to alert the public to the dangers of these chemicals. [=we need to tell the public about the dangers of these chemicals]我们需要提醒公众注意这些化学制品的危险性。
Synonyms
Example Sentences
Adjective An alert guard stopped the robbers. He was tired and had trouble staying alert while he was driving. She wasn't mentally alert enough to answer the questions. An alert watchdog guarded the door. Noun They sounded an alert when enemy planes were approaching the city. Medical officials have put out an alert to hospitals to look out for the virus. The government has issued a terrorism alert. Verb Several neighbors alerted the authorities when they noticed strangers acting suspiciously. The governor alerted island residents that a hurricane was coming. The teacher alerted the students that tests would be given the next day. See More
Recent Examples on the Web
Harold Maass, The Week, 15 Aug. 2022 These entrepreneurs must remain very alert and make brilliant and quick business decisions. Josh Wilson, Forbes, 16 June 2022 Tesla states that drivers using Autopilot must remain alert and be prepared to take full control of the vehicle at a moment’s notice. Matt Mcfarland, CNN, 15 June 2022 Kansas Governor Laura Kelly urged residents to remain alert as severe weather moved across the state Friday night. Dennis Romero, NBC News, 30 Apr. 2022 But despite the good news, experts are pleading with Americans to remain alert, as the highly infectious delta variant continues to circulate. Arielle Mitropoulos, ABC News, 22 Oct. 2021 Caring adults who stay alert to digital dilemmas, set useful boundaries, and offer empathy, connection, and validation. WIRED, 22 Aug. 2022 The traveling public should stay alert and follow instructions from signage and flaggers. oregonlive, 8 Aug. 2022 During construction, the DOT said there may be overnight lane closures on Route 3 and motorists should slow down, keep a safe distance, stay alert, obey traffic signs, and use extreme caution in work zones. Stephen Underwood, Hartford Courant, 15 July 2022 Kathryn Prociv, NBC News, 7 Sep. 2022 The Stage 3 alert ended at 8 p.m. without major rotating outages. CBS News, 7 Sep. 2022 The city has already reported two deaths due to the rains and India’s Meteorological Department has issued a yellow alert for Bangalore, indicating further bad weather. Saritha Rai, Fortune, 7 Sep. 2022 Later in the day, police sent another alert saying Myles Sanderson – one of two brothers believed to have killed 10 people and wounded 18 in a series of stabbings – was not in the community. Nicole Fallert, USA TODAY, 7 Sep. 2022 The boil water alert covers about 1,500 homes and facilities across roughly 56 city blocks. Emily Opilo, Baltimore Sun, 6 Sep. 2022 Nearly half of that was slated for bullet-resistant shields for school police and $17.1 million was for districts to purchase panic-alert technology. Andrew Demillo, Chron, 6 Sep. 2022 Under the alert, people are encouraged to take transit, work remotely and limit driving, and to protect their health by avoiding outdoor activities during the hottest part of the day when air pollution levels are highest. Jessica Flores, San Francisco Chronicle, 6 Sep. 2022 Around noon, an alert was sent out reporting that the suspect vehicle had been seen by a driver on Arcola Avenue in Regina and told the public in Regina to shelter in place. Nouran Salahieh, CNN, 6 Sep. 2022 Xl Media, cleveland, 8 Sep. 2022 But after the victims wire that money, their banks alert them that the check from the scammers was bogus. Ron Hurtibise, Sun Sentinel, 8 Sep. 2022 This iPhone texting tip basically will alert you every time iOS attempts to autocorrect a word. Yoni Heisler, BGR, 6 Sep. 2022 Most connected charging stations can also alert EV charging smartphone apps if a station is available. Jordan Ramer, Forbes, 16 Aug. 2022 The funeral employee did not alert the family of Kyung Ja Kim until hours later, according to the suit. Michelle Watson, CNN, 27 July 2022 Those workers will alert police to threats, point people to homeless-service agencies and keep an eye on vulnerable people. Los Angeles Times, 5 July 2022 Any customer who feels worried or unsafe should absolutely alert the bartender and/or security staff. Amy Dickinson, oregonlive, 12 June 2022 Any customer who feels worried or unsafe should absolutely alert the bartender and/or security staff. Amy Dickinson, Detroit Free Press, 12 June 2022 See More
Adjective
The incident came as tensions were high at many federal facilities and the FBI was on alert following threats against the agency over its raid at former President Donald Trump's Florida home last week. Harold Maass, The Week, 15 Aug. 2022 These entrepreneurs must remain very alert and make brilliant and quick business decisions. Josh Wilson, Forbes, 16 June 2022 Tesla states that drivers using Autopilot must remain alert and be prepared to take full control of the vehicle at a moment’s notice. Matt Mcfarland, CNN, 15 June 2022 Kansas Governor Laura Kelly urged residents to remain alert as severe weather moved across the state Friday night. Dennis Romero, NBC News, 30 Apr. 2022 But despite the good news, experts are pleading with Americans to remain alert, as the highly infectious delta variant continues to circulate. Arielle Mitropoulos, ABC News, 22 Oct. 2021 Caring adults who stay alert to digital dilemmas, set useful boundaries, and offer empathy, connection, and validation. WIRED, 22 Aug. 2022 The traveling public should stay alert and follow instructions from signage and flaggers. oregonlive, 8 Aug. 2022 During construction, the DOT said there may be overnight lane closures on Route 3 and motorists should slow down, keep a safe distance, stay alert, obey traffic signs, and use extreme caution in work zones. Stephen Underwood, Hartford Courant, 15 July 2022 Noun
Wednesday will be the ninth consecutive day when a portion of the Golden State has been under a heat alert. Kathryn Prociv, NBC News, 7 Sep. 2022 The Stage 3 alert ended at 8 p.m. without major rotating outages. CBS News, 7 Sep. 2022 The city has already reported two deaths due to the rains and India’s Meteorological Department has issued a yellow alert for Bangalore, indicating further bad weather. Saritha Rai, Fortune, 7 Sep. 2022 Later in the day, police sent another alert saying Myles Sanderson – one of two brothers believed to have killed 10 people and wounded 18 in a series of stabbings – was not in the community. Nicole Fallert, USA TODAY, 7 Sep. 2022 The boil water alert covers about 1,500 homes and facilities across roughly 56 city blocks. Emily Opilo, Baltimore Sun, 6 Sep. 2022 Nearly half of that was slated for bullet-resistant shields for school police and $17.1 million was for districts to purchase panic-alert technology. Andrew Demillo, Chron, 6 Sep. 2022 Under the alert, people are encouraged to take transit, work remotely and limit driving, and to protect their health by avoiding outdoor activities during the hottest part of the day when air pollution levels are highest. Jessica Flores, San Francisco Chronicle, 6 Sep. 2022 Around noon, an alert was sent out reporting that the suspect vehicle had been seen by a driver on Arcola Avenue in Regina and told the public in Regina to shelter in place. Nouran Salahieh, CNN, 6 Sep. 2022 Verb
But a loss will alert Barstool to send you a free bet of equal value, up to $1,000. Xl Media, cleveland, 8 Sep. 2022 But after the victims wire that money, their banks alert them that the check from the scammers was bogus. Ron Hurtibise, Sun Sentinel, 8 Sep. 2022 This iPhone texting tip basically will alert you every time iOS attempts to autocorrect a word. Yoni Heisler, BGR, 6 Sep. 2022 Most connected charging stations can also alert EV charging smartphone apps if a station is available. Jordan Ramer, Forbes, 16 Aug. 2022 The funeral employee did not alert the family of Kyung Ja Kim until hours later, according to the suit. Michelle Watson, CNN, 27 July 2022 Those workers will alert police to threats, point people to homeless-service agencies and keep an eye on vulnerable people. Los Angeles Times, 5 July 2022 Any customer who feels worried or unsafe should absolutely alert the bartender and/or security staff. Amy Dickinson, oregonlive, 12 June 2022 Any customer who feels worried or unsafe should absolutely alert the bartender and/or security staff. Amy Dickinson, Detroit Free Press, 12 June 2022 See More Word History
Etymology
Adjective
borrowed from French alerte, going back to Middle French a l'herte "on guard, on the watch," borrowed from Italian all'erta, originally in the collocation stare all'erta "to be on the watch," literally, "to be on the height" (with erta "height, hill, steep ascent," noun derivative from feminine of erto, past participle of ergere "to raise, elevate," going back to Vulgar Latin *ērgere, by syncope from Latin ērigere) — more at erect entry 1
Note: The earliest citation for the word in the Oxford English Dictionary suggests direct borrowing from Italian, or at least recognition of an Italian source: "In this place the Prince [of Orange] finding his rutters [cavalry soldiers] alert, (as the Italians say) with aduise of his valiant brother, hee sent his Trumpets to D. d' Alua …." (Sir Roger Williams, The Actions of the Lowe Countries, London, 1618, p. 27).
Noun
noun derivative of alert entry 1 (or borrowed from French alerte, derivative of alerte, adjective)
Verb
verbal derivative of alert entry 1 or alert entry 2
First Known Use
Adjective
1618, in the meaning defined at sense 1a
Noun
1801, in the meaning defined at sense 1
Verb
circa 1868, in the meaning defined at sense 1
Time Traveler
The first known use of alert was in 1618 Phrases Containing alert
noun
adjective
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