flank UK /flænk/US /flæŋk/noun 10verb 4adjective 1forms 3 noun10 •The lateral flesh between the last rib and the hip. •The extreme left or right edge of a military formation, army etc. •The sides of a bastion perpendicular to the wall from which the bastion projects. •The side of something, in general senses.Ahead the flanks of the Pennines gleamed faintly in the moonlight, looking as though they themselves were part of some dry and deserted lunar landscape. — 1960 •The outermost strip of a road. •The wing, one side of the pitch.The hosts also had Paul Robinson to thank for a string of saves, three of them coming against Jerome Thomas, who gave Michel Salgado a torrid time down the left flank. — 2011 •An ideological faction within a political party.Ford survived a primary challenge in 1976 from the right flank of the Republican Party by Ronald Reagan. •A cut of meat from the flank of an animal. •That part of the acting surface of a gear wheel tooth that lies within the pitch line. •Either of the two pockets located on the seat of a pair of pants.I took the quarter and hid it in my right flank. verb4 •To place to the side(s) of.Stately colonnades are flank'd with trees. — 1728 •To be placed to the side(s) of something (usually in terms of two objects, one on each side). •To attack the flank(s) of. •To defend the flank(s) of. adjective1 •(US) Maximum. Historically faster than full speed (the most a vessel can sustain without excessive engine wear or risk of damage), now frequently used interchangeably. Typically used in an emergency or during an attack.All ahead flank! formsflanked · flanking · flanks