This is the 69th most frequent German word.
hier
"Hier" means "here" in English.
In this sentence, 'hier' is used to indicate the location of the speaker's book.
Hier ist mein Buch.
Here is my book.
In this sentence, 'hier' refers to a specific part or location within a text where the speaker experiences difficulty understanding.
Hier verstehe ich den Text nicht.
Here I don't understand the text.
In this sentence, 'hier' is used as part of the directional phrase 'hierher' to indicate movement towards the speaker.