Synonym: at one time, erst, erstwhile, formerly, in one case, one time. Similar words: at once, concede, concert, concern, concept, all at once, conceive, once more. Meaning: [wʌns] 
adv. 1. on one occasion 2. as soon as 3. at a previous time.
adv. 1. on one occasion 2. as soon as 3. at a previous time. 
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211. Inform me at once if there are any changes in her condition.
212. Once we got home, there was barely time to enjoy our presents. We had to go off to our grandparents' house for our annual Christmas dinner. As we drove down the highway through town, I noticed that the family was still there, standing outside the closed gas station.
213. The Earth turns on its axis once every 24 hours.
214. Life moves pretty fast. If you don't stop and look around once in a while, you could miss it.
215. It seems that Christmas time is here once again, and it is time again to bring in the New Year. We wish the merriest of hristmas to you and your loved ones,(http://sentencedict.com/once.html) and we wish you happiness and prosperity in the year ahead.
216. Once upon a time there was a beautiful young princess with long golden hair.
217. It seems that Christmas time is here once again, and it is time again to bring in the New Year. We wish the merriest of Christmas to you and your loved ones, and we wish you happiness and prosperity in the year ahead.
218. It made a refreshing change to be taken seriously for once.
219. Once an abscess has burst it should be bathed with antiseptic liquid.
220. Once the fire had been stoked up, the room began to get warm.
221. What was once a cottage was now a crumbling heap of rubble.
222. A storm started up once we got out into the open ocean.
223. A boat goes over to the island once a week with mail and provisions.
224. He was in the middle of telling me a long tale about how he once met the Redskins' manager.
225. When two people are in love, they are eager to have more sweet kisses. But why they are in quarrel, they are hurting each other by the mouths that once used for kissing? Every time when I was upset or tired, I can only kiss by myself.
226. A woman has got to love a bad man once or twice in her life to be thankful for a good one.
227. Once, she walloped me over the head with a frying pan.
228. I once bought a thingummy out of one of those catalogues.
229. Once it has finished , the video automatically begins again.
230. He got a sound thrashing once his father found out.
More similar words: at once, concede, concert, concern, concept, all at once, conceive, once more, conception, concerning, concentrate, once in a while, concentration, once upon a time, concentrating, concrete, conclude, on credit, conclusion, conciliatory, since, hence, fence, cancel, cancer, dancer, stance, glance, chance, bounce.