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
try out (something) or try (something) out
to test something
We were not permitted to try out the computer before we bought it.