Groupings

2 clues
Arrangements
Collections of like objects
Similar answers:
Aboveground
Abovegroundpool
Actorsgroup
Adhocgroup
Afewgrouchymen
Agegroup
Aground
Agroupofpinkfleshed
Agroupthat
Aloedground
Aminogroup
Apings
Armygroups
Asagroup
Background
Backgroundcheck
Backgroundczech
Backgroundmusic
Backgroundnoise
Backgroundoffield