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

They didn't follow our lead.

He takes the lead in any group.

A: the same meaning

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

When the pot comes to a boil, cover it and reduce the heat to medium.

Cover the meat with a lot of gravy.

A: different meanings

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

He held a large block of the company's stock.

Since blocks are often defined as a single sector, the terms 'block' and 'sector' are sometimes used interchangeably.

A:
different meanings