Adele has two known tattoos. Each have special meanings to her, and they are both on her left wrist, one directly underneath the other.
The One Penny tattoo
This tattoo is extremely special to Adele and is assumed to be her first tattoo. The tattoo is an obvious reference to her mother, Penny Adkins, whom Adele is incredibly close to. Adele has not often talked about the tattoo, but she has confirmed that it is in honor of her mother and has said that it is very special to her.
The three dots
Adele has also tattooed three dots (in a horizontal line) on her left wrist, below the One Penny tattoo. This tattoo is very special to her as well, as she got this one with Joy Williams of the music duo known as The Civil Wars, who were a featured act on various tour dates during her Adele Live tour, as well as performing as featured acts when she performed at the Royal Albert Hall during the same tour. She has talked about the Civil Wars before and said that they are very close friends of hers.