Q: Sentence (1) Tickets are $5 per head.
Sentence (2) He is two heads taller than his little sister.. Word: head.
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A: different meanings

Q: Sentence (1) Do you know the way to the airport?
Sentence (2) He said he was looking for the way out.. Word: way.
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A: the same meaning

Q: Sentence (1) He got the sack for being late all the time.
Sentence (2) The boss is gon na give her the sack today.. Word: sack.
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A:
the same meaning