Question: Here is one sentence: He occupied a post in the treasury.
Here is another sentence: A pair of posts marked the goal.
Does the post mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: My neighbour has an annoying cat.
Here is another sentence: They're our neighbours across the street.
Does the neighbour mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: There was a light at every corner.
Here is another sentence: They played as long as it was light.
Does the light mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: This piano has a wonderful touch.
Here is another sentence: She likes the touch of silk on her skin.
Does the touch mean the same thing in the two sentences?

Answer:
different meanings