A feature in many applications that offers to complete a word or address that is only partially typed in. In word processors, the function often completes common words such as months of the year, while applications such as email use their name/address books to match the text as it is being typed character by character. Also called "type-ahead," autocomplete is especially helpful with Web browsers, eliminating the typing of long Web addresses (URLs) that have been previously entered.Autocomplete vs. AutofillAutocomplete works by matching typed-in text character by character, whereas "autofill" detects field types in a form (name, company, etc.) and fills them in with predefined text (see autofill). See predictive text, Smart Compose and incremental find.
Origin of autocomplete
auto- +"Ž complete