Abend is German for evening or eve, as in the phrases "guten abend," or "good evening," and Weihnachtsabend, or Christmas Eve. The plural of abend is abende.
Abend, evening, is a part of most German words and phrases dealing with evening or the eve of an important date. For example, heute abend means tonight, and Freitagabend refers to Friday evening. Abend vor Allerheiligen is Halloween, or All Hallow's Eve. Abendessen is dinner, or an evening meal, Abendkleid refers to a cocktail dress, and Abendtrunk is an evening drink, also known as a sundowner. Am abend is a way to say that something happened in the evening.