The phrase "to a certain degree" means that something is true or exists up to a point, but not completely or entirely. It suggests that there are limitations or qualifications to what is being said or done. For example, if someone says they like ice cream, it would be accurate to say so "to a certain degree," because everyone has their own preferences and tastes, and no one likes every single flavor of ice cream. Similarly, if someone claims that something works well, the statement can only be true "to a certain degree" since there may always be room for improvement or other factors to consider.