Common features and terms should be automatically recognized and completed by the system if the user wants that.
Sometimes people speak of word completion (Wikipedia (en)):
Autocomplete, or word completion, is a feature in which an application predicts the rest of a word a user is typing. In graphical user interfaces, users can typically press the tab key to accept a suggestion or the down arrow key to accept one of several.
Autocomplete speeds up human-computer interactions when it correctly predicts words being typed. It works best in domains with a limited number of possible words (such as in command line interpreters), when some words are much more common (such as when addressing an e-mail), or writing structured and predictable text (as in source code editors).