This is what it sounds like. Pulling, or plucking hair out of the skin. Plucking typically refers to the individual plucking of hair. There are many methods and tools to accomplishing this. A common tool are simple tweezers.
This process is more complicated the most and there are several methods of doing it. In general, the process involves a needle inserted into each hair follicle. The needle is used to deliver different methods of electrolysis all of which kill the hair follicle.
Depilatory creams have been around for a long time. In theory, they chemically burn the hair and hopefully the follicles. This can result in permanent hair loss.
This is a well-known method of hair removal. It usually involves some sort of wax formula that is heated and then poured onto the area of desired hair removal. Once it has cooled and solidified it is removed taking most of the hair with it.
Sugaring is beginning to become more popular. Some sources point to its use in ancient Egypt. Today it is a great alternative to waxing. Its mechanism is similar to waxing in that a paste is poured and spread over the spot of desired hair removal. Once the paste has hardened it is removed taking the hair with it. There are some advantages over waxing that some prefer.