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

He reserved a large block of seats.

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

A: the same meaning

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

The change was intended to increase sales.

This storm is certainly a change for the worse.

A: the same meaning

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

A trump can take a trick even when a card of a different suit is led.

Clubs were declared trumps.

A:
the same meaning