"Hemeral" refers to things that are related to daytime or only lasting for a day. Synonyms for this word include diurnal, daily, daylight, and ephemeral. "Diurnal" is often used to describe animals that are active during the daytime, while "daily" is commonly used to refer to events that happen every day. "Daylight" can be used to describe the period of time when the sun is out, and "ephemeral" is often used to describe something that is short-lived or fleeting. All of these synonyms can be used to describe things related to daylight or daily occurrences.