aviket

This is a short and sweet autocpmplete plugin, useful for autocompleting 
words, as the post author types the contents in the wordpress content area. 
By default, “wordpress” is the only word, which is autocompleted. So after 
installing and activating the plugin, when you, as an author, start typing 
the blog contents, after adding a new post, and when when you type “wo” , 
a small autocomplete box pops up beneth, with “wordpress” written on it. 
If you want to type “wordpress”, you can click on that widget, or if you 
want to type “wolverine” , you can keep typing, ignoring the widget. 
For adding more words, go to settings=>autocomplete options 
In the top row, there is a text box and a button. Type the word you want to 
add and press the “add word” button. This text box accepts only alphanumeric inputs. 
Now the new word is added in the list. To reset the list, press the “reset” button. 
And the list now resets to the original value “wordpress” 
This plugin uses “textcompleter” Jquery plugin by “Yuku Takahashi” 
https://github.com/yuku-t/jquery-textcomplete

Autocomplete

This is a short and sweet autocpmplete plugin, useful for autocompleting

acespritech

This plugin user for woocommerce checkout address fields. this will help you to find address in google.
Features: 
Address suggestions are relative to the selected country.
Compatible with all the version of WooCommerce.
Save your customer time and prevent from typing errors.
Auto fill state , city and postal code for selected address.
Address autocomplete using Google Map Address Autocomplete API key.

Autocomplete vs Woocommerce autocomplete checkout address