ER

ER stands for emergency room, which is a medical facility in a hospital. It specializes in the care of patients that require immediate attention.

The emergency room helps all sorts of people that suffer from a variety of ailments, such as head injuries, broken arms, and serious burns. The emergency room operates 24 hours a day as people don't ever take a break from getting hurt. ER was also the title of the popular and long-running medical drama on NBC, which ran from 1994 to 2009.

A baseball statistic that is used to keep track of the amount of earned runs a pitcher has allowed.

An earned run is a run that the pitcher has given up that wasn't a result of a fielding error caused by a defensive player. The ERA stat signifies how many earned runs a pitcher has given up for every nine innings, which is the length of a standard baseball game.

An abbreviation for employer that commonly appears in the payroll world; commonly seen when describing a tax type, like Social Security; similar to the ee abbreviation for "employee."