| 1. | a person or thing that flanks. |
| 2. | Military. one of a body of soldiers placed on the flank of an army to guard a line of march. |
| 3. | Fortification. a fortification projecting so as to defend another work or to command the flank of an assailing body. |
| 4. | Football.
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| an offensive end who lines up some distance outside the formation on the line of scrimmage as a pass receiver. |