whole new/different/other… (informal) completely new/different It's a whole new world out here. That's a whole other story. I suddenly saw him in a whole different light. Word Origin Old English hāl, of Germanic origin; related to Dutch heel and German heil, also to the verb hail (senses 1-3). The spelling with wh- (reflecting a dialect pronunciation with w-) first appeared in the 15th cent.