Definition

Noun: A bag designed for carrying books and other school supplies, typically used by students.

Usage

A "book bag" is a specific type of bag. It is used to describe the container a student uses to transport their academic materials to and from school or class. * Students carry their textbooks and notebooks in their book bag. * She packed her lunch inside her book bag.

Advanced Usage

• "to live out of a book bag": An informal expression suggesting a person is so busy with studies or travel that they are constantly carrying their essentials with them, as if their book bag is their primary storage.
  • During exam week, I practically live out of my book bag.

Variants and Related Words

• Backpack (n): A type of bag worn on the back, often with two shoulder straps, commonly used as a book bag.
• Schoolbag (n): A synonym for book bag, emphasizing its use for school.
• Satchel (n): A bag with a strap, often worn over the shoulder, which can serve as a book bag.

Synonyms

• Schoolbag
• Knapsack (dated, but still understood)
• Rucksack (more common in British English)

Antonyms

• There is no direct antonym, but unrelated items include: suitcase, briefcase, purse.

Related Phrases

• "pack your book bag": To put your books and supplies into the bag.
  • Don't forget to pack your book bag for school tomorrow.
• "dig through your book bag": To search for something inside the bag, often implying it is messy or full.
  • He had to dig through his book bag to find his calculator.

Noun

1. a bag in which students carry their books