What term defines the act of achieving something with effort or persistence, often through difficulty?

The term that defines the act of achieving something with effort or persistence, often through difficulty, is "endeavor." This word conveys the idea of making a concerted effort towards a goal, implying that challenges may be present along the way. When someone endeavors, they are not just aiming for the outcome but are deeply involved in the process, putting in sustained effort and faced with potential obstacles.

While the other terms relate to achievement in different ways, they do not necessarily encapsulate the continuous effort and persistence that "endeavor" implies. For instance, "strive" emphasizes the struggle or effort itself, while "achieve" refers more to the outcome. "Succeed" conveys the idea of reaching a goal but does not focus on the effort involved in getting there. Thus, "endeavor" captures the essence of striving through effort and overcoming challenges to reach an objective.