Nonuplet is a term used in the field of biology and refers to a group of nine offspring born at once. However, there are several other synonyms for the same that can be used. These include nonuple, ninefold, nonad, novenary, and nine-piece. All these words can be used to refer to a set of nine items or individuals born or created at the same time. Synonyms play an important role in expanding our vocabulary and providing alternative ways to express ourselves in speech and writing. Therefore, it is essential to learn and use synonyms effectively to communicate our thoughts and ideas more effectively.