“Extend”  Allow to take a list and append another list at the end of it.
# language list
1.language = ['French', 'English', 'German']

# another list of language
2.language1 = ['Spanish', 'Portuguese']

3.language.extend(language1)

# Extended List
4.print('Language List: ', language)

When you run the program, the output will be:
Language List:  ['French', 'English', 'German', 'Spanish', 'Portuguese']