1 emphasizes you are referring to a particular female -- selv
She told me herself. Hun fortalte meg det selv.
2 (of a female) alone or without help -- (helt) alene
She finished it all by herself. Hun gjorde alt ferdig helt alene.
3 (of a female) only for her -- (helt) for seg selv
4 used as the object of a verb or preposition when a female person or animal is the object of an action she performs -- hun/henne selv; seg (selv)
5 used to emphasize she, her, or the name of a female person or animal -- alene, på egen hånd, personlig, selv