Mental Challenges Vocabulary

noun A word used to identify any of a class of people, places, or things.

adverb A word or phrase that modifies or qualifies an adjective, verb, or other adverb.

preposition A word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause.

• The researchers continued to puzzle over the data, trying to find a pattern or explanation.
• I've been puzzling over this math problem for hours and still can't figure it out.
• I don't know why you're puzzling over that boy, he's not worth your time.
• She couldn't help but puzzle over the mystery of her past, wondering what secrets it held.