Q: Sentence (1) He spent hours looking for the source of that quotation.
Sentence (2) The accused refused to reveal the source of the illegal drugs she was selling.. Word: source.
==--==
A: different meanings

Q: Sentence (1) Time stops for nobody.
Sentence (2) The time of year for planting.. Word: time.
==--==
A: different meanings

Q: Sentence (1) The hunters found deer sign at the end of the trail.
Sentence (2) He showed signs of strain.. Word: sign.
==--==
A:
the same meaning