Final answer:
The word 'cuaderno' is used to represent 'a notebook' in Spanish.
Step-by-step explanation:
In Spanish, the word for 'a notebook' is un cuaderno. The word 'cuaderno' is a masculine noun and is used when referring to a singular notebook. For example, if you want to say 'I have a notebook' in Spanish, you would say 'Yo tengo un cuaderno'.
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