noun
EXAMPLES FROM CORPUS
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A small light bulb next to the assistant indicates that it has some helpful advice to offer.
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An outside cistern could be kept from freezing by hanging a light bulb near it and leaving it on all the time.
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I mean, look what Mr Edison, quite alone, managed to do with the light bulb !
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It was just that everything seemed too close, like staring at a light bulb .
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Q: How many high-tech artists does it take to change a light bulb ?