onion soup

noun

plural onion soups

: a soup made chiefly with onions and stock or broth

A generous, soul-warming collection of recipes from all over the world (five onion soups among them) …

—Richard Sax

especially : french onion soup

Examples of onion soup in a Sentence

Recent Examples on the Web

From burger toppings in the summer to cozy French onion soup in the fall, onions are useful year-round. — Rita Pelczar, Better Homes & Gardens, 15 Sep. 2026

Word History

First Known Use

1747, in the meaning defined above