The words her and der mean here and there in Danish. However, in many dialects, the two words have distinct pronunciations. Let us explore the difference between them.
When the words are emphasized, they are pronounced with a mid front unrounded vowel and a glottal stop. In English, emphasis can be given with more stress and longer duration. To emphasize that someone is in a particular location, we can say "He is here". In this situation, we can emphasize the word here.
However, the sentence "He is here" may simply be to confirm that someone is present. In this case, no emphasis is needed. Then the words her and der are pronounced [ha] and [da].
Danish has two pronunciations for the words her and der. One is used for emphasis, and the other is used when no emphasis is needed. The words for emphasis have a mid front vowel, and the other ones have a low central vowel.