Example:

    KILL A
    SET A="A",A(1)=1,A(1,1)=1
    WRITE $D(A(1)),!
    ZWITHDRAW A(1)
    WRITE $D(A(1)),!
    ZWRITE A
    QUIT   
   

produces the result:

   11
   10
   A="A"
   A(1,1)=1   
   

This sets up local variables A and A(1) and A(1,1). It then deletes the data for A(1) with ZWITHDRAW. The ZWRITE command shows ZWITHDRAW KILLed A(1) but left A and A(1,1).