1a point, period, or step in a process or development:there is no need at this stage to give explicit detailsI was in the early stages of pregnancy
a section of a journey or race:the final stage of the journey is made by coach
each of two or more sections of a rocket or spacecraft that have their own engines and are jettisoned in turn when their propellant is exhausted.
[with modifier] Electronics a specified part of a circuit, typically one consisting of a single amplifying transistor or valve with the associated equipment:a series resistance between the headphones and the output stage
2a raised floor or platform, typically in a theatre, on which actors, entertainers, or speakers perform:there are only two characters on stage
(the stage) the acting or theatrical profession:I’ve always wanted to go on the stage
[in singular] a scene of action or forum of debate, especially in a particular political context:Britain is playing a leading role on the international stage
3a floor or level of a building or structure:the upper stage was added in the 17th century
(on a microscope) a raised and usually movable plate on which a slide or object is placed for examination.
4 Geology (in chronostratigraphy) a range of strata corresponding to an age in time, forming a subdivision of a series:the Oxfordian stage
(in palaeoclimatology) a period of time marked by a characteristic climate:the Boreal stage
5 historical a stagecoach.
1present a performance of (a play or other show):the show is being staged at the Grand Opera House in Belfast
organize and participate in (a public event):UDF supporters staged a demonstration in Sofia
cause (something dramatic or unexpected) to happen:the President’s attempt to stage a comebackthe dollar staged a partial recovery
2 Medicine diagnose or classify (a disease or patient) as having reached a particular stage in the expected progression of the disease:cancer of the prostate is staged by the way it feels on rectal exam
hold the stage
dominate a scene of action or forum of debate:the notion of treatment by opposites has held the stage for too long
set the stage for
prepare the conditions for (the occurrence or beginning of something):these churchmen helped to set the stage for popular reform
stage left (or right)
on the left (or right) side of a stage from the point of view of a performer facing the audience: [as adverb]:a woman entered stage left [as noun]:a spaceman wanders in from stage right