blitz

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A blitzkrieg.
• noun A heavy aerial bombardment.
• noun An intense campaign.
• noun Football A sudden charge upon the quarterback by one or more of the linebackers or defensive backs when the ball is snapped.
• intransitive verb To subject to a blitz.
• intransitive verb Football To rush (the quarterback) in a blitz.
• intransitive verb To carry out a blitz.

from the GNU version of the Collaborative International Dictionary of English.

• noun (football) a quick move by defensive players toward the passer on the offensive team, as soon as the ball is snapped; -- it is used when the defensive teams assumes that a pass will be attempted, and risks allowing substantial gains by the offensive team if other plays are in fact planned.
• noun a rapid and violent military attack with intensive aerial bombardment. Same as blitzkrieg
• noun any vigorous and intensive attack, bombardment, or assault, literally or figuratively; ; the German blitz on London.
• noun same as blitz chess.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A sudden attack, especially an air raid; usually with reference to The Blitz.
• noun figuratively A sudden effort, as a publicity blitz.
• noun American football action of a defensive football player who rushes the passer of the football.
• noun chess Blitz chess, a form of chess with a short time limit for moves.
• noun A swift and overwhelming attack.
• verb To attack.
• verb American football To rush the passer.
• verb cooking To purée or chop (food products) using a food processor or blender.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun (American football) defensive players try to break through the offensive line
• noun a swift and violent military offensive with intensive aerial bombardment
• verb attack suddenly and without warning