Problem: Sentence1: He had a time holding back the tears.
Sentence2: They had a good time together.
Q: Does the term time mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: Gramata maksa piecas kronas -- the book costs five krona.
Sentence2: Piecas kronas -- five krona.
Q: Does the term krona mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: Authority for the program was renewed several times.
Sentence2: He is an authority on corporate law.
Q: Does the term authority mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: He occupied a post in the treasury.
Sentence2: Sent via post.
Q: Does the term post mean the same thing in both these sentences?

Answer:
the same meaning