Definitions of wrinkle:

• noun:   a clever method of doing something (especially something new and different)
• noun:   a minor difficulty

  Example: "They finally have the wrinkles pretty well ironed out"

• noun:   a slight depression in the smoothness of a surface

  Example: "Ironing gets rid of most wrinkles"

• verb:   make wrinkles or creases into a smooth surface

  Example: "The dress got wrinkled"

• verb:   make wrinkled or creased
• verb:   gather or contract into wrinkles or folds; pucker
• verb:   become wrinkled or crumpled or creased

  Example: "This fabric won't wrinkle"

• name:  A surname (very rare: popularity rank in the U.S.: #20430)