Many of Canada's cities are clustered along the American border.
The grapefruit was named for the way it grows in clusters, much like grapes, on the tree.
The children all clustered around the teacher as she began to read the story.
The pop singer was surrounded by a
cluster of excited young girls.
All the students were clustered around the bulletin board where their marks had been posted.
We found a bunch of crabs clustered under the rock when we turned it over.
Bees were clustered around the open jar of honey.
This plant
produces small clusters of three or four bright pink flowers.
Everyone clustered together under a tree when it began to rain.
There is a tendency for stars in our universe to occur in clusters.
Astronomers have discovered that many stars are born in clusters and that
both very old and very young clusters of stars exist in the sky.
Our galaxy, the Milky Way, is only one of a cluster of about two dozen galaxies.
All the stars in a given cluster are formed at about the same time.
All the stars found in one cluster have approximately the same age and same chemical composition.
Clusters of galaxies can be sorted into rich clusters and poor clusters, depending on the number of galaxies included within.
Jacques Roumain once noted that you cannot eat a cluster of grapes at once, but it is very easy if you eat them one by one.