Curt meaning
ENEN curt 
- Proper noun
- A short form of the male given name Curtis.
- A male given name, an anglicized spelling of Kurt.
- A short form of the male given name Curtis.
Definition of Curt in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Diminutive nouns
- Diminutives of male given names
- Diminutives of male given names
- Proper nouns
- Diminutive nouns
- Nouns
Source: Wiktionary
Grammatically, this word "Curt" is a noun, more specifically, a diminutive noun and a proper noun.