The word ‘wow’ is primarily used as an interjection. Interjections are words that express strong emotions or sudden bursts of feeling. They often stand alone and are used to convey excitement, surprise, or admiration.
For example, when someone sees an amazing performance or an impressive sight, they might say, ‘Wow!’ to express their astonishment. In some contexts, ‘wow’ can also function as a verb, meaning to impress or astonish someone, as in ‘The magician wowed the audience with his tricks.’
In summary, while ‘wow’ is mainly an interjection expressing emotion, it can also be used as a verb in certain situations, showcasing its versatility in everyday language.