What phrase describes the action taken 'with the object or purpose of'?

The phrase that describes the action taken 'with the object or purpose of' is accurately represented by the word "for." This word conveys the intention behind an action, indicating that something is done to achieve a specific outcome or purpose. In various contexts, "for" is employed to express the reasoning or benefit associated with an action, signifying that an effort is directed toward a goal or desired result.

For example, saying "I am studying for the exam" implies that the purpose of studying is to perform well on the exam. This demonstrates how "for" effectively captures the essence of purposefulness in actions. Thus, when looking for a term that encapsulates the motivation behind an action, "for" is the most appropriate choice.