The term "pad" has multiple meanings depending on its context.
1) In a general sense, it can refer to any soft or cushioned surface that is used for resting or writing, such as a piece of paper or notebook.
2) It can also be used in reference to a woman's undergarment, specifically the sanitary napkin or menstrual pad.
3) In slang terms, "pad" can refer to a person's head or face, as in "I hit him on the pad."
4) Lastly, it can be used in reference to a piece of electronic equipment, such as a computer keyboard or mouse, which is often referred to as a "computer pad".