A "Surah" (سورة) in the Quran is basically a chapter. Imagine the Quran as a book with separate portions, and each of those portions is a Surah. The Quran has 114 Surahs, which are very different in length. Some, such as Surah Al-Baqarah, are very long, while others, such as Surah Al-Kawthar, are very short.
Every Surah consists of "Ayahs" (آيات), or verses. These verses constitute... https://onlinequranislamacademy.com/what-is-a-surah-in-the-quran/