Meaning

1. row (line of objects, often regularly spaced)
2. row (people sitting in a line of seats, e.g. at a theater)
3. order, rank (group of people or things separated by some criteria)
4. tack (equipment and accessories worn by horses)
5. order (category in the classification of organisms, ranking below class and above family; a taxon at that rank)
6. order
7. rank
8. rank
9. (obsolete) rank, fellowship, retinue