Is the word fish plural or singular?

* Singular: When referring to one individual fish.

* Example: "I caught a big fish."

* Plural: When referring to more than one fish.

* Example: "There were many fish in the lake."

However, there are some exceptions:

* When referring to different species of fish, "fish" is often used as a plural, even if only one species is mentioned.

* Example: "We saw a variety of fish at the aquarium."

* In certain contexts, "fishes" is used as the plural form. This is typically used when referring to multiple species or types of fish.

* Example: "The scientists studied the various fishes of the Amazon River."

So, the context will tell you whether "fish" is singular or plural.