Meanings
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1
verb
to move around the side of an opposing force in order to attack from behind or gain an advantage
The cavalry crossed the river at night to outflank the defending army.
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2
verb
figurative: to defeat or gain an advantage over a rival through an unexpected maneuver
The smaller company tried to outflank its competitors with a cheaper subscription.
Thesaurus
Etymology
Formed from out- + flank. In military use, a flank is the side of a formation, so to outflank an enemy is to pass beyond that side. The figurative sense generalizes this tactical advantage to competition and argument.