Q: Does the word "fall" mean the same thing in "Fall into a strange way of thinking." and "They fell out of favor."?

A: the same meaning

Q: Does the word "air" mean the same thing in "The program was on the air from 9 til midnight." and "There was a tension in the air which made me suspect an approaching storm."?

A: different meanings

Q: Does the word "last" mean the same thing in "He finished an inglorious last." and "He was the last to leave."?

A: the same meaning

Q: Does the word "devotion" mean the same thing in "The devotion of his time and wealth to science." and "Their devotion to each other was beautiful."?

A:
different meanings