Answer: A word ROOT is the part of a word that shows its ORIGINAL meaning
English root words often come from other languages, especially LATIN and GREEK
Knowing the meaning of a word root can help you understand a word’s MEANING/DEFINITION (choose one, they basically mean the same thing)
Other word parts can be added to the beginning or the end of a word root to create a COMPOUND (not sure about this) word with the same central meaning.
I see that you are using the Guided Notes from Edgenuity. If you go to Slide 10 on your Instructions, you should find all of the answers to the blanks.