Definition of fish in the sea informal. —used to say that there are many more people available for a romantic relationship I know youre sad because you and your boyfriend broke up, but hes not the only fish in the sea. Youre right. There are many/plenty more fish in the sea.

Are there other fish in the sea?

1. If you tell someone that there are plenty more fish in the sea or there are other fish in the sea, you mean that there are many other people they could have a relationship with. If your daughter is upset because her boyfriend left her, declaring cheerfully `There are other fish in the sea wont help.

Can we run out of fish?

No more fish The worlds oceans could be virtually emptied for fish by 2048. A study shows that if nothing changes, we will run out of seafood in 2048. If we want to preserve the ecosystems of the sea, change is needed.

Is shark a fish or mammal?

Sharks are fish. They live in water, and use their gills to filter oxygen from the water. Sharks are a special type of fish known because their body is made out of cartilage instead of bones like other fish.