Q: Sentence (1) Keep count.
Sentence (2) Keep appointments.. Word: keep.
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A: different meanings

Q: Sentence (1) To pack goods in a box.
Sentence (2) Crowds packed the stands.. Word: pack.
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A: the same meaning

Q: Sentence (1) I'd like a big bit of cake, please.
Sentence (2) There are 8 bits in a byte.. Word: bit.
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A:
different meanings