Cahier vs. carnet vs. bloc-notes

In French, 'cahier', 'carnet', and 'bloc-notes' are terms used to describe various types of writing materials that share similarities but differ in their typical uses, sizes, and contexts. Understanding these differences is useful for choosing the correct word in a given situation.

Cahier

A notebook generally used for academic or professional purposes, often with lined or squared pages bound together.
Les élèves doivent acheter des cahiers pour la rentrée scolaire.
(Students must buy notebooks for back-to-school.)
Elle a rempli un cahier entier avec ses poèmes.
(She filled an entire notebook with her poems.)

Carnet

A small notebook that can be used for personal notes, lists, or reminders. Its size makes it convenient to carry around.
Il note toujours ses rendez-vous dans son carnet.
(He always notes his appointments in his pocketbook.)
J'ai acheté un carnet avec un joli dessin sur la couverture.
(I bought a notepad with a pretty design on the cover.)

Bloc-notes

A notepad typically consisting of loose sheets of paper that can be easily torn off. It's often used for quick notes, messages, or drafting.
Prends un bloc-notes pour écrire la liste des courses.
(Take a notepad to write the shopping list.)
Le bloc-notes sur le bureau est plein de rappels.
(The notepad on the desk is full of reminders.)

Summary

In summary, while 'cahier', 'carnet', and 'bloc-notes' can all refer to items used for writing down information, they serve different functions and are suited to various situations. A 'cahier' is typically a formal notebook for school or work, a 'carnet' refers to a small and portable notebook, and a 'bloc-notes' is a casual pad of paper usually used for quick notes or drafts.