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

One of the team’s first breakout products was known as Project Tailwind, an AI notebook that senior product manager Raiza Martin thought up in her 20% time, Google’s longstanding practice of letting employees dedicate one day a week to a project of personal interest. —Jennifer Elias, CNBC, 20 Dec. 2025

His notebooks are now housed at the Howard Gotlieb Archival Research Center at Boston University. —Paige Williams, New Yorker, 19 Dec. 2025

In a TikTok video that has gone viral, racking up nearly 250,000 views, a woman named Justine, @hihellojustine on TikTok, shares a sweet moment with her grandma, Carmen Katindoy, picking up a notebook resting on her lap. —Jordan Greene, PEOPLE, 18 Dec. 2025

The defense’s claim came as Mangione’s suppression hearing, which examined whether a handgun, silencer, magazine and a red notebook should be allowed in his criminal trial, ended after three weeks of testimony. —Sarah Rumpf-Whitten, FOXNews.com, 18 Dec. 2025

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