A function key is a key on a computer or terminal keyboard which can be programmed so as to cause an operating system command interpreter or application program to perform certain actions, a form of soft key. On some keyboards/computers, function keys may have default actions, accessible on power-on.
Surge definition, a strong, wavelike, forward movement, rush, or sweep: the onward surge of an angry mob. See more.
Princeton's WordNet (0.00 / 0 votes) Rate this definition: rapid (adj). a part of a river where the current is very fast. rapid (adj). done or occurring in a brief period of time. a rapid rise through the ranks. rapid, speedy (adj). characterized by speed; moving with or capable of moving with high speed.