Question: Sentence 1: The gravitation between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them.
Sentence 2: "Gravitation can not be held responsible for people falling in love" -- Albert Einstein.
Does gravitation mean the same thing in these two sentences?
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Answer: the same meaning

Question: Sentence 1: After a hard day's work, I vegetate in front of the television.
Sentence 2: The fields vegetate vigorously.
Does vegetate mean the same thing in these two sentences?
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Answer: different meanings

Question: Sentence 1: We sat around the fire singing songs and telling stories.
Sentence 2: Barbecue over an open fire.
Does fire mean the same thing in these two sentences?
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Answer:
different meanings