"Not only but also" is a commonly used phrase that implies the presence of two things that go together. It denotes a sense of completeness, highlighting the fact that an idea or statement encompasses multiple components. Some synonyms for "not only but also" include "as well as," "in addition to," "together with," and "coupled with." All of these phrases express that there are two or more elements that are connected in some way. They indicate a relationship between two ideas, people, or things, and reinforce the notion that two components are integral to a complete thought or concept. Using these synonyms can add diversity to your writing, enhancing your language and communication skills.