redefine

verb3

1. •
   To define again or differently.

   • Scientists and policy makers from around 60 nations voted unanimously Friday to redefine the kilogram. […] Friday’s vote has permanently redefined the kilogram and sent Le Grand K into retirement. — 2018
2. •
   To give a new or different definition to (a word).
3. •
   To define a previously defined area of storage etc. in a different manner, e.g. changing it from textual to numeric.

   • Next the "key redefiner" software came along. These were special programs that could "redefine" the keys on your keyboard , while still permitting you the normal use of the keys. — 1992