If you wanted to locate the meaning of the word valedictorian, which would be the best source or reference tool to use?

Question 1(multiple choice worth 5 points) (hc) in ralph waldo emerson’s poem, the concord hymn, he describes the beginning of the revolutionary war. in these two lines, what figure of speech does he use? “here once the embattled farmers stood and fired the shot heard round the world.” personification hyperbole simile alliteration