Q: Sentence (1) Their angry expressions were a clear sign they didn't want to talk.
Sentence (2) Signs of disease are objective, whereas symptoms are subjective.. Word: sign.
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A: the same meaning

Q: Sentence (1) He put the lamp back in its place.
Sentence (2) He has a special place in my thoughts.. Word: place.
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A: different meanings

Q: Sentence (1) Mankind should develop reason above all other virtues.
Sentence (2) If you don't give me a reason to go with you, I won't.. Word: reason.
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A:
different meanings