(1) The creation of beautiful or significant things
"Art does not need to be innovative to be good"
"I was never any good at art"
"He said that architecture is the art of wasting space beautifully"
(2) The products of human creativity; works of art collectively
"An art exhibition"
"A fine collection of art"
(3) A superior skill that you can learn by study and practice and observation
"The art of conversation"
"It's quite an art"
(4) Photographs or other visual representations in a printed publication
"The publisher was responsible for all the artwork in the book"