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Pronunciation varies by accent · noun
A prehistoric accumulation of shells, indicating the former presence of a community of people who ate shellfish..
Use shell heap when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Shell heap means A prehistoric accumulation of shells, indicating the former presence of a community of people who ate shellfish..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use shell heap where its definition matches the intended context.
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