When reading a newspaper, you come across the word subterranean. you guess the meaning of the word by breaking it into its parts. you know that sub- is a prefix meaning "under," and the word terra often refers to "earth" or "ground." the suffix -an means "relating to." you guess that subterranean means "underground." the process you've just used is called a. phonetic analysis. b. dictionary skill. c. context clues. d. structural analysis.