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IELTS BNC: 548 COCA: 300

once

1 once /ˈwʌns/ adverb
1 once
/ˈwʌns/
adverb
Learner's definition of ONCE
: one time only一次
: at any one time : ever任何一次;从来
: at some time in the past过去;曾经
sometimes used in combination有时用于合成词

once again/more

: for another time : one more time : again再一次

once and for all

: now and for the last time最后地;彻底地

once bitten, twice shy

see 1bite

once in a blue moon

see blue moon

once in a while

: sometimes but not often : occasionally偶尔地;间或

once upon a time

: at some time in the past从前;过去
Once upon a time is the traditional way to begin a fairy tale.“从前…”是童话故事传统的开篇语。
2 once /ˈwʌns/ noun
2 once
/ˈwʌns/
noun
Learner's definition of ONCE
[noncount]
: one single time一次

at once

: at the same time同时
: right away : without delay : immediately立刻;马上
3 once /ˈwʌns/ conjunction
3 once
/ˈwʌns/
conjunction
Learner's definition of ONCE
: at the moment when : as soon as…就
IELTS BNC: 548 COCA: 300

once

1 of 4

adverb

1
: one time and no more
rode a horse only once
went skydiving once
2
: at any one time : under any circumstances : ever
didn't once thank me
3
: at some indefinite time in the past : formerly
was once a booming mining town
4
: by one degree of relationship
first cousin once removed

once

2 of 4

noun

: one single time : one time at least
Please be on time this once.

once

3 of 4

adjective

: that once was : former
… contributions to enrich the legal resources of the once province of Britain. J. N. Pomeroy

once

4 of 4

conjunction

: at the moment when : as soon as
Once she spoke, I recognized her.
Phrases
once and for all
1
: with finality : definitively
The team proved once and for all that they are the best.
2
: for the last time
I'm telling you once and for all that I'm not going.
once in a while
: now and then
spent most of their time at home, but went out once in a while
at once
1
: at the same time : simultaneously
2
3
: both entry 2
at once funny and sad

Example Sentences

Adverb I will repeat the question once. The play was performed only once. She didn't once thank me. He didn't look at me once. It was once done that way. A river once flowed through this canyon. It was once a booming mining town. Their music was once very popular. Noun I have tried Indian food more than once. Please be on time just this once. For once you seem to know what I'm talking about. Adjective the once child star is now a lawyer in the entertainment industry Conjunction Once she spoke, I recognized her. you should have stopped wrestling once you knew someone was getting hurt, not five minutes later See More
Recent Examples on the Web
Adverb
That’s the idea once again with the popular venue scheduling a senior prom from 5 to 8 p.m. Thursday (Sept. 22) at the Springvale Ballroom. John Benson, cleveland, 16 Sep. 2022 For the first time in two and half years, Prince Harry will once again wear a military uniform. Janine Henni, Peoplemag, 16 Sep. 2022 Our choice today is, once again, chocolate raspberry. Ed Silverman, STAT, 16 Sep. 2022 Now, the Detroit Lions Pro Bowl center is set to miss time with a toe injury once again. Dave Birkett, Detroit Free Press, 16 Sep. 2022 Fast-forward to 2022, where the Fed’s ongoing inflation-fight once again has folks questioning if a housing crash is just around the corner. Lance Lambert, Fortune, 15 Sep. 2022 After more than two years of sitting idle, the S/V Denis Sullivan will sail once again in October. Chelsey Lewis, Journal Sentinel, 15 Sep. 2022 In August, West was once again the subject of social media backlash when photos of his new Yeezy apparel, stuffed into what looked like garbage bags, went viral. Los Angeles Times, 15 Sep. 2022 About that time, Glad climbed inside Hutchings’ police truck, and Shepherd made up his mind once again to shoot him. Paighten Harkins, The Salt Lake Tribune, 15 Sep. 2022
Noun
And on Friday, multiple blogs and news sites declared an even bigger change is coming: A larger, maybe even a complete, shift away from the all-at-once-release of Netflix shows. Andy Meek, BGR, 10 Sep. 2022 One similarity between the Orca and an EV is the all-at-once, better-be-ready throttle response. Dan Neil, WSJ, 28 July 2022 The platform on at least two occasions has blocked Raichik’s ability to tweet - once for 12 hours in April, and then again for a week in a sanction that ends Saturday. Taylor Lorenz, Elizabeth Dwoskin And Peter Jamison, Anchorage Daily News, 3 Sep. 2022 The Chabad of Glencoe event celebrated what was a once in a lifetime opportunity for many to witness the completion of an inked Torah scroll. Karie Angell Luc, Chicago Tribune, 30 Aug. 2022 Wembanyama is a once in a lifetime prospect, who could feasibly turn a team's fortunes around by becoming one of the most productive two-way centers in all of basketball. Morten Jensen, Forbes, 31 July 2022 Even harder is getting into the under-the-radar private shows the Stones play a once or twice each tour, which are usually arranged by a billionaire and held in a tiny venue. Andy Greene, Rolling Stone, 9 Aug. 2022 Voyager is a once in a lifetime, and perhaps many lifetimes, mission. Naman Ramachandran, Variety, 7 Mar. 2022 The binge-it-all-at-once model, for example, is no longer inviolable. Andy Meek, BGR, 19 June 2022
Adjective
And thanks in part to a $50 million infusion in 2018 from Brian Acton, the former WhatsApp CEO and current interim Signal Foundation CEO, the once niche app is more accessible than ever. WIRED, 20 Aug. 2022 Rebels & Renegades, a 2-day music festival taking place October 15-16 at the Monterey Fair & Event Center in Monterey, CA, the once home to the famous Monterey Pop Festival. J.k. Dineen, San Francisco Chronicle, 12 Aug. 2022 Now, with the once-bedroom communities of Herriman and Copperton, for example, growing, even booming, the transportation plans are becoming outdated. Alixel Cabrera, The Salt Lake Tribune, 20 Apr. 2022 For now the once globe-trotting Ghosn is stuck in Lebanon, unable to travel overseas without risking arrest and a return to Japan. Reuters, CNN, 2 Mar. 2022 The once chairman for Disney and 20th Century Fox has also directed films including Coupe de Ville and America’s Sweethearts. Spencer Elliott, Forbes, 15 Oct. 2021 All around him, a heavy blanket of smoke camouflaged the once pristine lake with a gray and brown haze that made the water difficult to see even from just a few feet away. NBC News, 12 Sep. 2021 Tents were pitched by people using the once grand station lobby as a shelter. BostonGlobe.com, 3 Sep. 2021 Don Tracy of Springfield, who was elected state GOP chairman in February, acknowledged the party’s base has shifted to less populous rural Downstate areas while the once bedrock Republican collar counties become increasingly Democratic. Dan Petrella, chicagotribune.com, 19 Aug. 2021 See More

Word History

Etymology

Adverb, Noun, Adjective, and Conjunction

Middle English ones, from genitive of on one

First Known Use

Adverb

12th century, in the meaning defined at sense 1

Noun

13th century, in the meaning defined at sense 1

Adjective

1620, in the meaning defined above

Conjunction

1747, in the meaning defined above

Time Traveler
The first known use of once was in the 12th century
IELTS BNC: 548 COCA: 300

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