Q: Sentence (1) Who's got dibs on the chips?
Sentence (2) I have dibs on that last slice of pizza.. Word: dibs.
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A: the same meaning

Q: Sentence (1) The head of the page.
Sentence (2) A reduction in the assessment per head of sheep.. Word: head.
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A: different meanings

Q: Sentence (1) When bending the elbow the biceps are the agonist.
Sentence (2) When bending the elbow the biceps are the agonist.. Word: agonist.
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A:
the same meaning