To change to a tan colour due to exposure to the sun.
No matter how long I stay out in the sun, I never tan. though I do burn.
To change an animal hide into leather by soaking it in tannic acid. To work as a tanner.
To spank or beat.
The process of making leather, which does not easily decompose, from the skins of animals, which do.
The acquisition of a tan, either by exposure to the sun, or artificially.
A spanking.