stage
n. countable A2 Elementary Oxford US //ˈsteɪdʒ// UK //stˈeɪdʒ// stage
n. a specific period or step in a process. It can also mean the raised floor in a theater where actors perform.
n. a distinct step or period in a sequence of events or a process of development; alternatively, a raised platform in a theater or concert hall for public performance.
The project is in its final stage.
The actors walked onto the stage to take their final bow after the play ended.
While the initial stage of the recovery was slow, the subsequent phases showed a marked improvement in the patient's mobility and overall health.
Usage
Often used with the preposition 'at' when referring to a point in time ('at this stage').