They grew up together.
Meaning: This means two or more people became larger or more mature in the same place or at the same time.
Choice of Words: They refers to two or more people that have been previously mentioned. Grew is a verb that means to become larger or more mature. Up is an adverb that indicates a direction or position. Together means in the same place or at the same time. When you put them together, it means two or more people became larger or more mature in the same place or at the same time.
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Related Expressions