Definition of step changechiefly British
- There has been a step change in our understanding of the problem.
: a rest for the foot in ascending or descending: such as
: one of a series of structures consisting of a riser and a tread
: a ladder rung
: to move by raising the foot and bringing it down elsewhere or by moving each foot in succession
: to go on foot : walk
: related by virtue of a remarriage (as of a parent) and not by blood
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