a change from one state or condition to another
(count)
We want to have a smooth transition when the new owners take control of the company.
the sometimes difficult transition from childhood to adulthood
The country made/underwent a peaceful transition from dictatorship to democracy.
(noncount)
The industry is undergoing transition. (=is changing in some important way)
The company is in transition (=is changing) as it adapts to the new management team.
– transitional adjective
a transitional government
a transitional phase/period/stage