What is the meaning of the word "rank"?

Definitions:

a row or line of people, especially soldiers or police, standing abreast of one another noun
- The entrance was guarded by ranks of police.
assign a rank or rating to verb
- how would you rank these students?
growing profusely adjective
- rank jungle vegetation
relative status noun
- Their salary was determined by rank and seniority.
take or have a position relative to others verb
- This painting ranks among the best in the Western World
the ordinary members of an organization (such as the enlisted soldiers of an army) noun
- the strike was supported by the union rank and file
very offensive in smell or taste adjective
- a rank cigar