group group /ˈgruːp/

noun

1. () Any number of entities (members) considered as a unit  ( grouping , group )
   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  ( chemical group , group , radical )
   (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 , mathematical group )
   a set that is closed, associative, has an identity element and every element has an inverse
   
   

verb

1. () Arrange into a group or groups  ( group )
   arrange into a group or groups
    Can you group these shapes together?
   Can you group these shapes together?
   
2. () Form a group or group together  ( aggroup , group )
   form a group or group together