Question: Here is one sentence: Check the time of the class.
Here is another sentence: Check the oil in your car once a month.
Does the check mean the same thing in the two sentences?

Answer: different meanings


Question: Here is one sentence: Much of the waste material is carried off in the sewers.
Here is another sentence: The trackless wastes of the desert.
Does the waste mean the same thing in the two sentences?

Answer: different meanings


Question: Here is one sentence: On the one hand ..., but on the other hand ...
Here is another sentence: A good hand.
Does the hand mean the same thing in the two sentences?

Answer: different meanings


Question: Here is one sentence: His reaction was the product of hunger and fatigue.
Here is another sentence: Skill is the product of hours of practice.
Does the product mean the same thing in the two sentences?

Answer:
the same meaning