Question: Here is one sentence: She's an elegant dresser.
Here is another sentence: He's a very snappy dresser.
Does the dresser mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: A bedside stand.
Here is another sentence: The army made a final stand at the Rhone.
Does the stand mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: A component or constituent element of a system.
Here is another sentence: In your element.
Does the element mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: The teacher paused in her lecture to allow the students to assimilate what she had said.
Here is another sentence: This country assimilates immigrants very quickly.
Does the assimilate mean the same thing in the two sentences?

Answer:
different meanings