Swedish edit

Etymology edit

bonus- +‎ syster

Noun edit

bonussyster c

  1. a stepsister

Declension edit

Declension of bonussyster 
Singular Plural
Indefinite Definite Indefinite Definite
Nominative bonussyster bonussystern bonussystrar bonussystrarna
Genitive bonussysters bonussysterns bonussystrars bonussystrarnas

Synonyms edit