Interjection words wow, yay-yaay, yeah, yikes and yippee used to express surprise, admiration, congratulate, fear and celebration in communication. uses of word wow, examples of yay-yaay, sentences with yeah, uses of word yikes, use of word yippee, interjection words https://www.englishmirror.com/english-grammar/uses-of-interjection-8.html