This is the 3822nd most frequent Dutch word.
und
The word "und" is not Dutch; it is German and means "and" in English.
The word 'en' in this sentence is used as a conjunction to connect two words, 'muziek' (music) and 'dans' (dance).
Ik houd van muziek en dans.
I love music and dance.
Here, 'en' connects two verbs, 'lezen' (reading) and 'schrijven' (writing), showing tasks to be learned.
Je moet leren lezen en schrijven.
You need to learn reading and writing.
In this sentence, 'en' connects two nouns, 'boek' (book) and 'pen' (pen), representing items purchased.