Questions & Answers about Søskenet mitt er yngre enn meg.
Søskenet is singular and means the sibling.
- Indefinite singular: et søsken = a sibling
- Definite singular: søskenet = the sibling
- Indefinite plural: søsken = siblings
- Definite plural: søskena / søskenene = the siblings
So Søskenet mitt means my sibling (one person), not my siblings.
The ending -et is the neuter definite singular ending.
- et søsken = a sibling (neuter noun)
- søskenet = the sibling
Other examples with the same pattern:
- et hus → huset (a house → the house)
- et barn → barnet (a child → the child)
So -et here just says the.