Sentence:  While the definition of humanities is, of necessity, fairly vague, the definition of <WSD>allied arts</WSD> is clearer. The allied arts, as has been stated earlier, are a category within the broad scope of humanistic studies. The allied arts course is concerned with the study of such specific areas as music, literature, the fine arts, mass communication and dance. 
Meaning of the word marked with <WSD> tags:  Fine arts, related disciplines in literature, the visual and performing arts.