The phrase "is current" can be expressed in a number of ways. Some synonyms include "is present," "is prevailing," "is popular," "is up-to-date," "is contemporary," "is fashionable," "is in vogue," and "is modern." Additionally, you can also use phrases like "is of the moment," "is the latest," and "is in fashion" to convey a sense of something being current. Depending on the context, certain synonyms may be more appropriate than others. However, all of these phrases can be used interchangeably to describe something that is currently happening or prevailing in a particular situation or context.