Questions & Answers about Lukten är underbar.
Because -en is the definite ending. Swedish usually puts the at the end of the noun instead of using a separate word.
- lukt = smell / a smell
- lukten = the smell
So Lukten är underbar means The smell is wonderful.
The dictionary form is lukt.
When you look up Swedish nouns, you usually find the indefinite singular form:
- en lukt = a smell
From that, you can build:
- lukten = the smell
So lukten is the definite singular form of lukt.
Because lukt is an en-word (also called common gender).
For many en-words, the definite singular ends in -en:
- en bok → boken
- en stol → stolen
- en lukt → lukten
If it were an ett-word, the definite ending would usually be -et instead.