noun
a word or phrase that is familiar or common in everyday language
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The phrase 'household words' refers to words or expressions that are widely known and used within a particular community or society.
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In our family, 'Netflix and chill' has become a household word for relaxing on the weekends.
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Among teenagers, 'lit' is a household word for something that is exciting or cool.
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In the world of fashion, 'little black dress' is a household word for a versatile and timeless piece of clothing.