Question: Sentence 1: I fear the worst will happen.
Sentence 2: I fear for their safety.
Does fear mean the same thing in these two sentences?
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Answer: the same meaning

Question: Sentence 1: Any line joining two points on a plane lies wholly on that plane.
Sentence 2: We will refer to the plane of the graph as the X-Y plane.
Does plane mean the same thing in these two sentences?
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Answer: the same meaning

Question: Sentence 1: Mariners on sailing ships would sound the depth of the water with a weighted rope.
Sentence 2: Sound the alarm.
Does sound mean the same thing in these two sentences?
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Answer:
different meanings