noun A position in the hierarchy of the armed forces. (an army officer of high rank) A single line of soldiers or police officers drawn up abreast. (they were drawn up outside their barracks in long ranks) The people belonging to or constituting a group or class. (the ranks of Britain's unemployed) The value or the order of the largest non-zero determinant of a given matrix.
verb Give (someone or something) a rank or place within a grading system. (students ranked the samples in order of preference) Arrange in a row or rows. (the tents were ranked in orderly rows)
adjective (of vegetation) growing too thickly and coarsely. (clumps of rank grass) Having a foul or offensive smell. (breathing rank air) (especially of something bad or deficient) complete and utter (used for emphasis) (rank stupidity)