list of strings to a single string

[tebirkes]

How do I convert a list of strings into a single string in a function where the list of strings is my argument? Without using join?
If you have a dictionary with names and some sentences.

This is what I had in mind? 

def somefunction(list_strings):
   #list_strings = dictionary.values()
    for value in list_strings:
        string = list_strings.append()
    return string