Question: Sentence 1: Authority for the program was renewed several times.
Sentence 2: He is an authority on corporate law.
Does authority mean the same thing in these two sentences?
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Answer: different meanings

Question: Sentence 1: Raise a shout.
Sentence 2: Chew with your mouth shut -- were you raised in a barn?
Does raise mean the same thing in these two sentences?
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Answer: different meanings

Question: Sentence 1: Gather some stones.
Sentence 2: People gathered round as he began to tell his story.
Does gather mean the same thing in these two sentences?
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Answer:
the same meaning