formation
US /fɔːrˈmeɪ.ʃən/
UK /fɔːrˈmeɪ.ʃən/
1.
the action of forming or process of being formed
:
•
The formation of ice crystals in the clouds leads to snow.
•
The formation of a new government is underway.
2.
a structure or arrangement of something
:
•
The birds flew in a V-formation.
•
The rock formation was impressive.