Which word derived from the root dict means a reference book of words?

• A. Prediction
• B. Dictation
• C. Verdict
• D. Dictionary

Answer: (D)

The concept being tested is recognizing a word formed from a root meaning to say or speak and identifying which one is a reference book of words. A dictionary is exactly that—a reference book that lists words along with their meanings, pronunciations, and usage. It embodies the idea of compiling words for quick lookup, which is why it’s the best fit.

Prediction comes from the sense of saying something before it happens, so it’s about foretelling rather than a book of words. Dictation refers to the act of speaking something aloud for someone else to write down, so it’s about spoken words, not a reference book. Verdict means a formal decision or judgment, derived from the same root but used in a legal or decisive context, not a book of words.