Q: Sentence (1) We used a poison to kill the weeds.
Sentence (2) The poison of fascism.. Word: poison.
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A: different meanings

Q: Sentence (1) While being impulsive can be great for artists, it is not a desirable quality for engineers.
Sentence (2) Security, stability, and efficiency are good qualities of an operating system.. Word: quality.
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A: the same meaning

Q: Sentence (1) Doesn't that patch of clouds looks like a bunny?
Sentence (2) The storms last summer washed away parts of the road so we can expect some rough patches up ahead.. Word: patch.
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A:
the same meaning