/ What Word Completes the Analogy for March 29? / What Word Completes the Analogy for September 21? What Word Completes the Analogy for September 21? (What is an analogy?) WEED : PLANT :: flu : ____ Hint The relationship between the first pair of words is that of item to category—one word names something that falls into the category, or group, named by the other word. sneezing health illness Word QuizSpelling Bee