What does the negative sign in the expression `E_(Zn^(2+)//Zn)^(@)=-0.76V` mean?

What does the negative sign in the expression E_(Zn^(2+)|Zn)^(@)=-0.76V mean ?

Which is a stronger reducing agent Zn or Fe? If E_(Zn^(2+)//Zn)^@ = -0.76V , and E_(Fe^(2+)//Fe = -0.44V

Explain the following : Zinc displaces hydrogen from acid solution. E_(Zn^(2+)//Zn)^(Theta)= -0.76V

What does the standard electrode potential of a metal being negative (E_(Zn^(2+)//Zn)^(Theta)= -0.7632) indicate ?

Write the Nernst equation for the above cell, if E^@(Zn^(2+)|Zn)=-0.76V, E^@(Cu^(@+)|Cu)=+0.34V