Simple past tense and past participle of rank, adjective_ arranged in a sequence of grades or ranks

Categorization or arrangement of a group of people or things into such ranks or grades, A group of animals in which certain members or subgroups dominate or submit to others, Any group of objects ranked so that every one but the topmost is subordinate to a specified one above it

Plural form of grade, verb_ Third-person singular simple present indicative form of grade