Q: Does the word "understand" mean the same thing in "I understand wanting more." and "I understand how to do it."?

A: the same meaning

Q: Does the word "difference" mean the same thing in "It just won't make much of a difference to anyone." and "His support made a real difference."?

A: the same meaning

Q: Does the word "fire" mean the same thing in "We sat around the fire singing songs and telling stories." and "Fire was one of our ancestors' first discoveries."?

A: the same meaning

Q: Does the word "howl" mean the same thing in "He gave a howl of pain." and "Howls of laughter."?

A:
the same meaning