Definition of art

Art influences and affects one or more of the senses, emotions, and intellect. It is achieved by means of music, literature, film, photography, sculpture, and paintings.

Philosopher Richard Wollheim defined it as a mean of expression of emotions and ideas. Lev Tolstoy identified art as a use of indirect means to communicate from one person to another. Benedetto Croce and R.G. Collingwood thought that art expresses emotions. 

The word art can describe several things: a study of creative skill, a process of using the creative skill, a product of the creative skill, or the audience's experience with the creative skill.

I think that art is something that activates and stimulates an individual's thoughts, emotions, beliefs, or ideas through the senses. It is also an expression of an idea and it can take many different forms and serve many different purposes.