How to call a VB function from MS word ?

I've got document1 (default) open;
VB editor open
I pasted my VB function :
myfunction(yourstring) as String ...

I've got a table 2 cols X 3 rows

a1 b1
a2 b2
a3 b3

how can i make b1 to be myfunction(a1)
b2 to be myfunction(a1)
etc...

thank you for any help

Not following what you want to do here. Are you trying to use VBA or VB...could you explain what ya want in more detail