Englishfor English speakers
online
Preposition
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If a system is online, it is connected (generally electronically) to a larger network.
I do a lot of shopping online, so I almost never have to leave the house.
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If a machine is online, it is turned on and is ready to do work.
Since the printer is back online, you should be able to again print from it.
contest
Noun
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A contest is where people do a quiz or play a game to win a prize.
He took part in the contest as he wanted to win the first prize.