Is “Exclamation” a Scrabble word?
Yes
EXCLAMATION
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Exclamation
/ˌɛkskləˈmeɪʃ(ə)n/
noun
1.A loud calling or crying out, for example as in surprise, pain, grief, joy, anger, etc.
2.A word expressing outcry; an interjection
3.A clause type used to make an exclamatory statement: What a mess they made!; How stupid I was!
Synonyms: exclamation mark, exclamation point