(especially of accommodation or service) given three stars in a grading system in which this denotes a high class or quality, being one grade below four-star:this well-furnished three-star hotel is close to the lake and has a pleasantly traditional air
having or denoting the third-highest military rank, distinguished in the US armed forces by three stars on the shoulder piece of the uniform:the three-star lieutenant general
three-star in other Oxford dictionaries
Definition of three-star in the US English dictionary