This is the 387th most frequent Danish word.
manden
"The man."
Here, 'manden' is the definite form of 'man' ('mand'), meaning 'the man'. It is used as the subject of the sentence.
Manden er på arbejde.
The man is at work.
In this sentence, 'manden' serves as the definite object of the verb 'talte' (spoke).
Jeg talte med manden i går.
I spoke with the man yesterday.
Here, 'manden' is used in a genitive context, indicating possession in relation to 'bogen' (the book).