Definitions of simply:

• adverb:   absolutely; altogether; really

  Example: "We are simply broke"

• adverb:   and nothing more

  Example: "It is simply a matter of time"

• adverb:   in a simple manner; without extravagance or embellishment

  Example: "They lived very simply"

• adverb:   absolutely

  Example: "It's simply beautiful!"