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

I'm going for a dip before breakfast.

This onion dip is just scrumptious.

A: different meanings

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

The match ended in their first loss of the season.

His loss of credibility led to his resignation.

A: the same meaning

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

An important piece of the evidence.

He wrote an interesting piece on Iran.

A:
different meanings