noun Aen is not a noun
Aen is a prefix used in astronomy to denote objects related to the planet Venus, such as 'aenigmatite' which is a type of mineral found on Venus.
In fantasy literature, 'aen' is often used as a prefix to signify something ancient or timeless, such as 'Aen Elle' which is a race of elves in The Witcher series.
In science fiction, 'aen' is sometimes used to indicate futuristic or advanced technology, as seen in phrases like 'aenarion shield' or 'aenarion propulsion system'.
In the field of writing, 'aen' may be used as a pen name or pseudonym for an author.
In psychology, 'aen' may be used as an abbreviation for an assessment tool or a specific psychological concept.
In software development, 'aen' could be used as a variable name or function name in coding.
In marketing, 'aen' might be used as part of a product or brand name.
In the medical field, 'aen' could be used as an abbreviation for a medical term or procedure.