Definition of notebook
1
: a book for notes or memoranda
2
: laptop entry 2
especially
: a particularly small or light laptop
… have been selling smaller, lighter, cheaper and more powerful notebooks for two years. — Peter H. Lewis
—often used before another noun a notebook computer
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Merriam-Webster unabridged
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Time Traveler for notebook
The first known use of notebook was in 1568
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