What rank is ace rank?

Excuse me, but I'm a bit confused about the terminology you're using. Are you referring to the rank of an "ace" in the context of a card game, such as poker, or is there another specific context or field in which "ace rank" is relevant? If it's the former, an ace is typically considered the highest-ranking card in many card games, including poker, where it is often referred to as a "high card" or a "high ace." However, depending on the game and its rules, the ranking of an ace may vary. Could you please clarify the context in which you're asking about the rank of an ace?