Wh-movement

Definition
movement of a wh-phrase. Wh-movement always moves the moved element to an A-bar position, in particular the specifier position of CP. Languages differ with respect to whether this movement is overt or not; while wh-movement is overt in English (see wh-in-situ) it appears to be covert in Chinese, and may be overt or covert in French.

Links

 * Utrecht Lexicon of Linguistics