Question: Here is one sentence: The newspaper is featuring a competition to win a car.
Here is another sentence: Business competition can be fiendish at times.
Does the competition mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: The sauce should reduce to one cup.
Here is another sentence: The cells reduce.
Does the reduce mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Declare dividends.
Here is another sentence: The President declared war.
Does the declare mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Pittsburgh is the source of the Ohio River.
Here is another sentence: He spent hours looking for the source of that quotation.
Does the source mean the same thing in the two sentences?

Answer:
different meanings