Read the dictionary definition of group. All definitions for this word.
1. any number of entities (members) considered as a unit
2. a set that is closed, associative, has an identity element and every element has an inverse
3. (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
4. arrange into a group or groups
1. Can you group these shapes together?
5. form a group or group together