enter >> /ˈɛn(t)ər/
Definition: [transitive verb] Come or go into (a place)
Example: she entered the kitchen
Definition: [transitive verb] Begin to be involved in.
Example: in 1941 America entered the war
Definition: [transitive verb] Write or key (information) in a book, computer, etc., so as to record it.
Example: children can enter the data into the computer
Definition: [transitive verb] Submit (a statement) in an official capacity, usually in a court of law.
Example: an attorney entered a plea of guilty on her behalf
Definition: [noun] A key on a computer keyboard which is used to perform various functions, such as executing a command or selecting options on a menu.
Example: The games are rather shallow and require only the use of the four arrow keys and the enter key on your keyboard, or a couple of buttons on your controller.