Ground zero: The term ground zero (sometimes also known as surface zero as distinguished from zero point) describes the point on the Earth\'s surface closest to a detonation.
ML_GOAZCATS Heyer gets a ground out to end the threat for the Devils. #ArizonaWildcats and #ASU tied at zero heading to the bottom of the 4th.
authentikindsk8 RT @Ground_Zero_: New Bones Wheels in at Ground Zero Arden!
DoloresSchmeler Ground Zero Heroes: Images Of The Cleanup And Recovery Effort At Ground Zero: A Photographic Tribute to the Fire... http://t.co/pwrzoosr