Hominoids are a group of primates that includes great apes and humans. Synonyms for hominoids can include anthropoids or higher primates. These terms are often used interchangeably to refer to primates that share certain characteristics, such as a large brain size, forward-facing eyes, and the ability to walk upright. Another synonym for hominoids is the term hominids, which refers specifically to humans and their ancestors. However, it is important to note that there are subtle differences between these terms, and their usage may vary depending on the intended context or the specific species being discussed.