wrinkles

/R IH1 NG K AH0 L Z/
noun
  1. 1

    A small furrow, ridge or crease in an otherwise smooth surface.

  2. 2

    A line or crease in the skin, especially when caused by age or fatigue.

    โ€œSpending time out in the sun may cause you to develop wrinkles sooner.โ€

  3. 3

    A fault, imperfection or bug especially in a new system or product; typically, they will need to be ironed out.

    โ€œThree months later, we're still discovering new wrinkles.โ€

  4. 4

    A twist on something existing; a novel difference.

noun
  1. 1

    A winkle

Source: https://en.wiktionary.org/wiki/wrinkle, https://en.wiktionary.org/wiki/wrinkles