The phrase "is equal to" is commonly used to signify equivalence or similarity between two or more entities. However, there are several synonyms for this phrase that can be used interchangeably, such as "equals," "corresponds to," "matches," "is identical to," "is the same as," "equates to," and "amounts to." All of these synonyms carry the same meaning of two or more things being identical or similar in some way. Using these alternative phrases can help to add variety and clarity to writing, and can make communication more effective by avoiding repetitive language.