an award of first base granted to batters who, during their time at bat, receive four pitches outside the strike zone

Four balls and the hitter advances to first base.

when a batter recieved four balls and is entitled to an automatic walk to first base

An award of first base to a batter who has received four pitches outside the strike zone without swinging at them. All forced runners advance one base. Also called a "walk."

The batter advances to first because three pitches were out of the strike zone.

Also commonly referred to as a "walk". When a batter receives four pitches that are out of the strike zone, he is awarded first base.

In baseball statistics, a base on balls (BB), also called a walk, is credited to a batter and against a pitcher when a batter receives four pitches that the umpire calls balls. It is called a "walk" because the batter is then entitled to walk to first base, or more specifically (as defined in the rules of baseball) he is "entitled to first base without liability to be put out." Any baserunner who is forced advances as well.