Crepusculum refers to the twilight period, which is the time before sunrise and after sunset. It is the time when the sky is filled with a blend of warm colors, creating a serene and peaceful atmosphere. The word crepusculum has many synonyms, such as dusk, evening, gloaming, and twilight. Twilight is a common synonym of crepusculum and is often used to describe the same time of day. Dusk is a synonym that is used to describe the onset of night, while gloaming refers to the time just before darkness falls. These synonyms are useful for writers seeking to create a descriptive and poetic atmosphere in their writing.