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

He was a successful pianist in his day.

In the days of sailing ships.
Answer: the same meaning
Question: "pack" used in the same way in the following two sentences?

To pack fish.

Crowds packed the stands.
Answer: the same meaning
Question: "stay" used in the same way in the following two sentences?

To stay a flat sheet in a steam boiler.

After the trial period, she was asked to stay on and work full-time.
Answer: different meanings
Question: "breath" used in the same way in the following two sentences?

He took a deep breath and dived into the pool.

I could feel the runner's breath on my shoulder.
Answer:
different meanings