Groups of things.

A group of ravens is called an unkindness.
A group of rhinos is a crash.
A group of jellyfish is a smack.
A group of cobras is a quiver.
A group of crocodiles is a float.
A group of eagles is a convocation.
A group of foxes is a skulk or a leash.
A group of goldfish is a troubling.
A group of nightingales is a watch.
A group of starlings is a murmur.
A group of trout is a hover.
A group of woodpeckers is a descent.
A group of storks is a muster.

I want to name groups of things! My quick try, based on things I see around me right this second: A group of desks is an undertaking. A group of photos is a benediction. A group of books is a posturing. A group of telephones is a shout. (Try it! It's fun!)