Perigees is a term that commonly refers to the point at which a celestial object, such as the moon, is closest to the earth. Synonyms for perigees may include the following: closest approach, nearness, proximate distance, the nearest point, low point, or the point of closest proximity. These terms all convey the idea of being close or in proximity to something else. For example, the closest approach of a comet to the sun is known as perihelion, which is another term that could be considered a synonym for perigees. Essentially, any term that carries the meaning of being within close proximity to something else could be viewed as a synonym for perigees.