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proverb – n. a popular saying
sleep spindles – n. a burst of brain activity that signals the beginning of deeper sleep
quantify – v. to find or calculate the quantity or amount of (something)
confused – adj. unable to understand or think clearly
decline – v. to become worse in condition or quality
novel – n. new and different from what has been known before
senior – adj. of or related to a higher rating or education
