exclamation
/ˌɛkskləˈmeɪʃ(ə)n/
A loud calling or crying out, for example as in surprise, pain, grief, joy, anger, etc.
A word expressing outcry; an interjection
A clause type used to make an exclamatory statement: What a mess they made!; How stupid I was!
The sign "!" by which outcry or emphatic utterance is marked.