1) Leaves the witness stand 2) Retires from office 
• (a.) Transforming or converting a current of high potential or pressure into one of low pressure; as, a step-down transformer.
Step'-down` adjective (Electricity) Transforming or converting a current of high potential or pressure into one of low pressure; as, a step-down transformer. 
a much less severe version of a drop-off.
The command given by the Starter or Referee to have the swimmers move off the blocks. Usually
The command swimmers may hear from the starter, asking them to step off the blocks.
serving to reduce or decrease voltage: a step-down transformer.
A jump where the landing is lower than the starting point. 
A jump where the landing is lower than the starting point.