Select the most appropriate one-word substitution for the given group of words

A large group of fish feeding and swimming together.

Shoal

The most appropriate word for a large group of fish feeding and swimming together is shoal.

• Herd is a large group of animals that live and hunt together.
• Group is a collection of people or things that are together.
• Shoal is a large group of fish swimming together.
• Apiary is a place where bees are kept.