What is the meaning of wrinkle?

noun

• A slight depression in the smoothness of a surface.
  • usage: "his face has many lines"; "ironing gets rid of most wrinkles"
  • synonyms: furrow, crease, crinkle, seam, line
• A minor difficulty.
  • usage: "they finally have the wrinkles pretty well ironed out"
• A clever method of doing something (especially something new and different. )

verb

• Gather or contract into wrinkles or folds; pucker.
  • usage: "purse ones's lips"
  • synonyms: purse
• Make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in.
  • usage: "The dress got wrinkled"; "crease the paper like this to make a crane"
  • synonyms: ruckle, crease, crinkle, scrunch, scrunch up, crisp
• Make wrinkled or creased.
  • usage: "furrow one's brow"
  • synonyms: furrow, crease
• Become wrinkled or crumpled or creased.
  • usage: "This fabric won't wrinkle"
  • synonyms: rumple, crumple, crease, crinkle