Ouch! Oh my! Wow! Yikes!
If you’ve ever uttered any of the words above, you’ve used an interjection, whether you knew it at the time or not. The word interjection comes from the Latin words inter (between) and jacĕre (to throw). So, an interjection is a word that you throw in between sentences or thoughts to express a sudden feeling.
Because interjections usually express sudden feelings, you’ll often see them used to convey surprise (both good surprises and bad ones) or excitement.