n.
1.any number of entities (members) considered as a unit
2.(chemistry) two or more atoms bound together as a single unit and forming part of a molecule
3.a set that is closed, associative, has an identity element and every element has an inverse group v.
1.arrange into a group or groups
2.form a group or group together
Idiom of the Day
set the world on fire
to do something outstanding, to do something that makes one famous
The author has not been able to set the world on fire with his writing but he is trying very hard.