What's the noun for exclamations? Here's the word you're looking for.
exclamation
A loud calling or crying out; outcry; loud or emphaticutterance; vehement vociferation; clamor; that which is cried out, as an expression of feeling; sudden expression of sound or words indicative of emotion, as in surprise, pain, grief, joy, anger, etc.
A word expressing outcry; an interjection; a word expressing passion, as wonder, fear, or grief.