flanker

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

• noun One that flanks, especially a soldier so positioned as to protect the flank of a column of troops on the march.
• noun Business An extension product, such as a diet version of a soft drink or a liquid version of a detergent, added to a line to support the sales of the main product.
• noun Football A flankerback.

from The Century Dictionary.

• noun A spark of fire.
• noun One who or that which flanks, as a skirmisher or body of troops employed on the flank of an army to reconnoiter or guard a line of march, or a fortification projecting so as to command the side of an assailing body.
• noun A side piece or flanked piece of timber.
• To defend by flankers or lateral fortifications.
• To attack sidewise or by the flank.
• To come on sidewise.
• To sparkle; flicker.

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

• noun One who, or that which, flanks, as a skirmisher or a body of troops sent out upon the flanks of an army toguard a line of march, or a fort projecting so as to command the side of an assailing body.
• transitive verb obsolete To defend by lateral fortifications.
• transitive verb obsolete To attack sideways.

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

• noun rugby A player who plays in the back row of the scrum.
• noun American football A wide receiver who lines up behind the line of scrimmage.
• noun military A fortification or soldier projecting so as to defend another work or to command the flank of an assailing body.
• verb obsolete To defend by lateral fortifications.
• verb obsolete To attack sideways.

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

• noun a back stationed wide of the scrimmage line; used as a pass receiver
• noun a soldier who is a member of a detachment assigned to guard the flanks of a military formation