The answer to that is 21 days exactly, although you need to bear in mind that this can vary, depending on a number of circumstances. Generally speaking however, fertile chicken eggs which are hatched out by a hen will take 21 days before you see little faces staring at you from underneath their mamma's wings.
In linguistics, a register is a variety of a language used for a particular purpose or in a particular social setting.
The definition of a server is a person whose responsibility it is to provide assistance to another person, or a centralized computer system or program that holds data to which multiple users can connect. 1  A waiter at a restaurant who brings you your meal is an example of a server.