Question: "call" used in the same way in the following two sentences?

He was ejected for protesting the call.

After two raises there was a call.
Answer: different meanings
Question: "world" used in the same way in the following two sentences?

He sailed around the world.

All the world loves a lover.
Answer: different meanings
Question: "do" used in the same way in the following two sentences?

Do nothing.

A 'B' grade doesn't suffice to get me into medical school.
Answer: different meanings
Question: "defense" used in the same way in the following two sentences?

Defense against hurricanes is an urgent problem.

He joined the defense against invasion.
Answer:
different meanings