This value stands for reflexive pronouns. They form a unity with reflexive verbs: sich sch"amen, sich trauen...
Also, constructions with prepositions contain reflexive pronouns:
type=refl | |||
D e s c r i p t i o n | E x a m p l e s | ||
Reflexive pronouns in acc | mich, dich, sich, uns, euch, sich | ||
Reflexive pronouns in dat | mir, dir, sich, uns, euch, sich | ||
Retrospective pronoun | einander |