in laravel Property [password] does not exist on this collection instance

hello i use login page for login on my website and where call admin password i see Property [password] does not exist on this collection instance error

my method when dd password :

 public function dologin(Request $request){

    $username = $request->username;
    $password = $request->password;
    $admin = User::with('usermetas')->where('username',$username)->
    orWhere('email',$username)->where('admin','0')->get();
    dd($admin->password);}

my users table have a password varchar(250) colomen

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