Over-shadow is commonly defined as a verb that means to obscure or cast a shadow over something or someone. There are a variety of synonyms for this word that can be used to convey similar meanings. Words such as eclipse, mask, overshadow, dominate, and subdue all capture the sense of over-shadowing by representing a person or thing as being dominant or more important than others. Other synonyms like cloud, shade, and obscure capture the sense of covering or hiding something, often causing it to be less visible or impactful. These synonyms provide writers and speakers with a variety of options to help them communicate accurately and effectively.