We found 2 dictionaries that define the word rank orders:

General (2 matching dictionaries)

1. rank orders: Merriam-Webster
2. rank orders: Vocabulary.com

(Note: See rank_order as well.)

Definitions from WordNet (rank order) ▸ noun:  an arrangement according to rank ▸ Also see rank_order ▸ Words similar to rank orders ▸ Usage examples for rank orders ▸ Idioms related to rank orders ▸ Wikipedia articles (New!) ▸ Words that often appear near rank orders ▸ Rhymes of rank orders ▸ Invented words related to rank orders