Q: Sentence (1) 200 head of cattle.
Sentence (2) This song keeps going through my head.. Word: head.
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A: different meanings

Q: Sentence (1) The "war on terror" is a campaign against terrorist crime.
Sentence (2) The "war on drugs" is a campaign against the use of narcotic drugs.. Word: war.
==--==
A: the same meaning

Q: Sentence (1) He checked the point on his compass.
Sentence (2) A row of points.. Word: point.
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A:
different meanings