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

Seek happiness.

Seek a position.

A: the same meaning

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

Back into the driveway.

The wind backed.

A: different meanings

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

$50 won't even purchase a dress.

To purchase land, to purchase a house.

A:
the same meaning