Q: Sentence (1) The swiftest of foot.
Sentence (2) He followed on foot.. Word: foot.
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A: the same meaning

Q: Sentence (1) Pay attention to.
Sentence (2) Pay an obligation.. Word: pay.
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A: different meanings

Q: Sentence (1) It is much cooler in the shade.
Sentence (2) Close the shade, please: it's too bright in here.. Word: shade.
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A:
the same meaning