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.
event
Noun
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An event is anything that happens.
The event of her walking into the room happened before the event of the book falling off the table, so she saw it fall.
In the event that the machine breaks, read this to know what to do.
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An event is when many people come together at a time they choose for a reason or for fun.
At the event tomorrow we're going to have balloons and music.