rank >> /ræŋk/
Definition: [verb] Give (someone or something) a rank or place within a grading system.
Example: she is ranked number four in the world
Definition: [verb] Arrange in a rank or ranks.
Definition: [noun] A position in the hierarchy of the armed forces.
Example: an army officer of fairly high rank
Definition: [noun] A single line of soldiers or police officers drawn up abreast.
Example: they were drawn up outside their barracks in long ranks
Definition: [noun] The people belonging to or constituting a group or class.
Example: the ranks of the unemployed
Definition: [noun] The value or the order of the largest nonzero determinant of a given matrix.
Example: The rigidity of a matrix is the number of entries in a matrix which need to be changed in order to bring the rank of the matrix down to a certain value.