The phrase "on the Continent" is often used to refer to mainland Europe, excluding the United Kingdom and Ireland. However, there are several synonyms that can be used instead of this phrase. For instance, the term "European mainland" can be used to describe the geographical area of continental Europe. "Across the Channel" is another phrase that can be used as a synonym for "on the Continent" as it refers to the English Channel that separates the United Kingdom from continental Europe. Other synonyms that can be used include "in Europe," "on the European continent," or simply "in continental Europe." All these synonyms can be used interchangeably and convey the same meaning.