Exclamation (noun)

1. An exclamatory word or phrase, such as "Wow!", used to express surprise, admiration, emphasis, etc.
2. An exclamatory sentence or phrase used to express strong feeling.

Origin:

Late middle english: from latin exclamatio(n-), from the verb exclamare (see exclaim).

Examples:

1. He let out an exclamation of surprise.
2. The exclamation of "Eureka" is attributed to Archimedes.
3. She let out an exclamation of disappointment.
4. The exclamation "Oh my God!" is commonly used to express surprise or shock.
5. The exclamation mark is used at the end of an exclamation.