Definitions of application:

• noun:   a diligent effort

  Example: "It is a job requiring serious application"

• noun:   the work of applying something

  Example: "The doctor prescribed a topical application of iodine"

• noun:   the act of bringing something to bear; using it for a particular purpose

  Example: "He advocated the application of statistics to the problem"

• noun:   a verbal or written request for assistance or employment or admission to a school

  Example: "December 31 is the deadline for applications"

• noun:   a program that gives a computer instructions that provide the user with tools to accomplish a task

  Example: "He has tried several different word processing applications"

• noun:   liquid preparation having a soothing or antiseptic or medicinal action when applied to the skin