Hi,
"Google suggest" is the name of Google’s auto-complete function. If a user enters a letter or a word in Google’s search field, they are automatically shown associated terms in a drop down menu.
This function helps users save time and may also provide them with additional information about the topic they are researching.
"Autocomplete" is a feature in which an application predicts the rest of a word a user is typing.
it speeds up human-computer interactions.