Q: Does the word "wall" mean the same thing in "A wall of water." and "Negotiations ran into a brick wall."?

A: the same meaning

Q: Does the word "get" mean the same thing in "Did you get it?" and "She didn't get the joke."?

A: the same meaning

Q: Does the word "shift" mean the same thing in "Shift the date for our class reunion." and "Shift one's position."?

A: different meanings

Q: Does the word "treatment" mean the same thing in "The change is due largely to the increased availability of antiretroviral treatment." and "Cancer survivors who got radiation treatments as children have nearly twice the risk of developing diabetes as adults."?

A:
the same meaning