Q: Sentence (1) This form of conflict is essential to Mann's writing.
Sentence (2) A conflict of loyalties.. Word: conflict.
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A: different meanings

Q: Sentence (1) The hum of distant traffic.
Sentence (2) They could hear a hum coming from the kitchen, and found the dishwasher on.. Word: hum.
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A: the same meaning

Q: Sentence (1) Our advertisements reach millions.
Sentence (2) His hand reaches the river.. Word: reach.
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A:
different meanings