ECB -- The England and Wales Cricket Board and has the design of the snazzy three-lions-and-a-coronet emblem that appears on the shirts of the England team. The ECB came into being in 1997, to replace the former Test and County Cricket Board, but with a broader remit to administer the game at all levels, not just professional cricket. See also Governing bodies.
Economy -- A bowler's ability to prevent the batsmen from scoring, measured in runs per over. In most forms of cricket, a bowler is happy with a rate of less than three runs an over.
Edge -- Batting shot, usually unintentional contact between ball and edge of the bat. May result in a catch to wicket-keeper or slips.
Eleven -- See XI.
Extras -- All runs not scored off the bat -- no-balls, wides, byes and leg-byes. Extras count to the team's total, but not to the batsman.