notebook

noun

note·​book ˈnōt-ˌbu̇k 

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

Examples of notebook in a Sentence

Take out your notebook and write down some of your ideas.

She kept a notebook for her poetry.

Recent Examples on the Web

Residents across western Pennsylvania held binoculars and notebooks over the weekend as many participated in the Audubon Society of Western Pennsylvania's Great Backyard Bird Count. —CBS News, 15 Feb. 2026

The The Middlesteins author only purchased her first real bed at the age of 45, traveling back and forth across America filling notebooks with ideas for more than three decades. —Hayley Maitland, Vogue, 14 Feb. 2026

Laura managed to jot the trumpet part into a notebook, but by then, Sun Ra’s riffs had changed. —Literary Hub, 13 Feb. 2026

He is known to watch a match back twice on the night of a game — once non-stop with commentary, then once with a notebook. —Megan Feringa, New York Times, 9 Feb. 2026

Word History

First Known Use

1568, in the meaning defined at sense 1

Rhymes for notebook

• kinderhook
• meadowbrook
• overlook
• overtook
• pocketbook
• storybook
• tillamook
• undertook
• betook
• casebook
• chapbook
• checkbook

Kids Definition

notebook

noun

note·​book ˈnōt-ˌbu̇k 

1

: a book for notes

2

: a portable computer that is similar to but usually smaller than a laptop