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

I back you all the way.

Back this enterprise.
Answer: the same meaning
Question: "lift" used in the same way in the following two sentences?

You never lift a finger to help me!

Lift an embargo.
Answer: different meanings
Question: "foot" used in the same way in the following two sentences?

I'll meet you at the foot of the stairs.

The foot of the page.
Answer: different meanings
Question: "damage" used in the same way in the following two sentences?

How much is the damage?

What's the damage? he asked the waiter.
Answer:
the same meaning