Q: Does "addition" have the same meaning in the following two sentences?

The addition of a leap day every four years.

The addition of cinnamon improved the flavor.

A: different meanings

Q: Does "stay" have the same meaning in the following two sentences?

We stayed in Hawaii for a week.

I can only stay for an hour.

A: different meanings

Q: Does "etiolation" have the same meaning in the following two sentences?

His etiolation signaled years in prison.

The etiolation of celery.

A:
different meanings