Questions & Answers about Mobilabonnementet er nyt.
Because Danish normally writes compound nouns as a single word.
So:
- mobil = mobile / cell phone
- abonnement = subscription / plan
- mobilabonnement = mobile subscription / mobile plan
Then -et is added to make it definite.
A useful rule: in Danish compounds, the last part is the main noun, and it decides the gender and inflection. Here the main noun is abonnement.
-et is the definite article ending for a singular neuter noun.
Compare:
- et mobilabonnement = a mobile subscription
- mobilabonnementet = the mobile subscription
So instead of putting a separate word like the before the noun, Danish often adds the definite ending directly to the noun.