Cant transfer a variable onto another function

[KEIKAS]

The error is in line 17

import tkinter as tk
from tkinter.ttk import *
window = tk.Tk()

def Adder():
    AddingWindow = tk.Toplevel(window)
    AddingWindow.geometry("400x400")
    Label(AddingWindow, text="Mail/Username", width="20", font="Calibri 22 bold").pack()
    name = Entry(AddingWindow, width=50)
    name.pack()
    Label(AddingWindow, text="Password", width="20", font="Calibri 22 bold").pack()
    passw = Entry(AddingWindow, width=50)
    passw.pack()
    Add = Button(AddingWindow, text="Add", width="20").pack()
    
def Save():
   Password = passw.get()
    print(Password)

window.geometry("500x500")
greeting = tk.Label(text="Password Manager: Developed by KEIKAS", font="Calibri 20 bold")
AddB = tk.Button(text="Add", width="20",height="2",bg="green", command=Adder)
AccessB = tk.Button(text="Access", width="20",height="2",bg="blue")
RemoveB = tk.Button(text="Remove", width="20",height="2",bg="red")

greeting.pack()
AddB.pack()
RemoveB.pack()
AccessB.pack()
window.mainloop()

Error:
NameError: name 'passw' is not defined