Englishfor English speakers
signal
Noun
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A picture, or a light, or a movement of a hand, or other thing that tells people to do something.
When I make this signal with my hand, everybody walk to the front of the room.
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A picture, or a light, or a movement of a hand, or something else that lets someone recognize another person, a ship, an airplane or something else.
The sailor saw the signal on the other ship and so recognized it was the enemy.
signal
Verb
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When someone or something signals to someone, they use a signal to tell the person something.
The red light signals to the cars to stop.
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.