What is the meaning of Zerar?

to zero

1. to set a measuring instrument to zero

   to set a measuring instrument to zero

   to cause or set some value or amount to be zero

   to change a memory location to values of zero

   to receive or give (someone) a grade of zero [with em ‘in a test’]

   to pay off (to pay the entirety of a loan)

   to beat (to complete all levels of a video game)

   Source: wiktionary.org