1. (noun) any number of entities (members) considered as a unit

• group

2. (noun) a system for classifying things into groups

• pigeonholing

1. (noun) any number of entities (members) considered as a unit

• abstract entity
• abstraction

2. (noun) the activity of putting things together in groups

• activity

3. (noun) a system for classifying things into groups

• classification system

1. (noun) any number of entities (members) considered as a unit

• accumulation
• aggregation
• assemblage
• collection
• actinide
• actinoid
• actinon
• arrangement
• association
• biological group
• biotic community
• community
• circuit
• citizenry
• people
• cloud
• swarm
• edition
• electron shell
• ethnic group
• ethnos
• halogen
• hoi polloi
• mass
• masses
• multitude
• people
• the great unwashed
• human beings
• human race
• humanity
• humankind
• humans
• man
• mankind
• world
• kingdom
• lanthanide
• lanthanoid
• lanthanon
• rare earth
• rare-earth element
• people
• population
• race
• sainthood
• scheme
• system
• series
• social group
• straggle
• subgroup
• varna

2. (noun) the activity of putting things together in groups

• aggregation
• assembling
• collecting
• collection
• assortment
• categorisation
• categorization
• classification
• compartmentalisation
• compartmentalization
• pairing
• phrasing
• punctuation
• sorting

1. (noun) any number of entities (members) considered as a unit

• aggroup
• group
• group

2. (noun) the activity of putting things together in groups

• aggroup
• group
• group

3. (noun) a system for classifying things into groups

• pigeonhole
• stamp
• stereotype