Jump to:

• Fishes
  Fishes

  noun

  the constellation Pisces, the twelfth sign of the zodiac
• fishes
  fishes

  Traditionally, a class of vertebrates that breathe with gills rather than lungs, live in water, and generally lay eggs, although some bear their young alive. Some biologists consider the fishes a “superclass,” and divide them into three classes: bony fishes, such as sunfish and cod; fishes with a skeleton formed of cartilage rather than bone, such as sharks; and fishes that lack jaws, such as lampreys.

Fishes

British  

/ ˈfɪʃɪz /

noun

1. the constellation Pisces, the twelfth sign of the zodiac

---

fishes Cultural  

1. Traditionally, a class of vertebrates that breathe with gills rather than lungs, live in water, and generally lay eggs, although some bear their young alive. Some biologists consider the fishes a “superclass,” and divide them into three classes: bony fishes, such as sunfish and cod; fishes with a skeleton formed of cartilage rather than bone, such as sharks; and fishes that lack jaws, such as lampreys.

---

Discover More

Fishes are cold-blooded animals.

Example Sentences

Seven Fishes is about reminiscing on the year while letting go of whatever you’d like to leave behind.

From Salon • Dec. 14, 2025

The first few years his family took on the Seven Fishes, they attempted to serve all seven dishes hot.

From Salon • Dec. 14, 2025

And Chris was like, “Well, we gotta do Seven Fishes then.”

From Los Angeles Times • Aug. 13, 2024

Their aim was to answer questions about feeding in early vertebrates without jaws in the early Devonian epoch -- sometimes called the Age of Fishes -- around 400 million years ago.

From Science Daily • Apr. 10, 2024

The year before the society had backed a costly flop called The History of Fishes, and they now suspected that the market for a book on mathematical principles would be less than clamorous.

From "A Short History of Nearly Everything" by Bill Bryson