Question: Sentence 1: Don't underestimate the danger of such a raft trip on this river.
Sentence 2: He underestimated the work that went into the renovation.
Does underestimate mean the same thing in these two sentences?
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Answer: the same meaning

Question: Sentence 1: To arouse jealousy.
Sentence 2: To arouse compassion.
Does arouse mean the same thing in these two sentences?
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Answer: the same meaning

Question: Sentence 1: A lot of money.
Sentence 2: He bought a lot on the lake.
Does lot mean the same thing in these two sentences?
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Answer:
different meanings