Watashi (私) means "I" or "me." It is the most common and polite way for anyone, male or female, to refer to themselves. You can use it in almost any situation, from formal to casual, making it very versatile for self-introduction or stating your actions. Example: 私は学生です。(Watashi wa gakusei desu.) = I am a student.

自分(じぶん)を指(さ)す一番(いちばん)一般的(いっぱんてき)な言葉(ことば)です。男女(だんじょ)問(と)わず使(つか)えます。例(れい)：私(わたし)は学生(がくせい)です。