This is the 6556th most frequent German word.
emotion
A strong feeling derived from one's circumstances, mood, or relationships.
In this sentence, 'Emotion' is used as a noun to describe a deep feeling, specifically a reaction to an experience or art.
Die Emotion, die sie beim Anblick des Gemäldes empfand, war überwältigend.
The emotion she felt when seeing the painting was overwhelming.
Here, 'Emotion' is employed as a noun indicating a characteristic of his spoken voice, adding emphasis or conveying feeling.
Er sprach mit einer Emotion in der Stimme, die alle Anwesenden berührte.
He spoke with an emotion in his voice that touched everyone present.
In this usage, 'Emotionen' is plural and refers to the general concept of feelings and emotional states in a broader sense.