private class AsyncMapPass extends AsyncTask<String, String, String> {
     protected String doInBackground(String... params) {
        return null;
     }
}

private class AsyncMapPass extends AsyncTask<Dictionary, String, String>
{
    protected String doInBackground(Dictionary... params)
    {
        // The params parameter can be accessed like an array
        // So you can pass as many Dictionary objects as needed
        Dictionary d0 = params[0];
        Dictionary d1 = params[1];
        ...
        ...
        return null;
    }
}