Collective nouns

Words for a group of something.

A group of owls is called a parliament.

Pis forPile

Many things stacked on top of each other in no particular order is called a pile. The photo is of a pile of tyres.
A group of dolphins, whales or sometimes seals is called a pod. You may also be looking for a pea pod instead.

Pis forPrattle

A group of parrots is called a prattle.

Pis forPrickle

A group of hedgehogs or porcupines is called a prickle.
A group of lions is called a pride. You might also be interested in the sin of pride.

Ris forRange

A group of mountains all in a row is called a range.

Ris forReef

When many coral colonies grow close together over a very long time, they build up to form a reef. Reefs can get so high they come out of the water at low tide, and can be dangerous to ships.

Ris forRhumba

A group of rattlesnakes is called a rhumba.