The phrase "with the aided eye" refers to the act of observing or seeing something with the help of an optical device like a microscope or telescope. It is synonymous with terms like magnified, amplified, enhanced, and intensified. These words indicate that the object being viewed is being examined with greater clarity and detail. Other synonyms for "with the aided eye" include scrutinized, inspected, studied, analyzed, and examined. These words are often used in scientific research and investigations, where a closer look at something is required to gain a deeper understanding of its properties or characteristics.