There are several synonyms for the phrase "every year." Some alternatives may include "annually," "each year," "yearly," "per annum," or "once a year." These phrases can be used interchangeably depending on the context of the sentence. For example, "The festival is held annually in September" can also be written as "The festival is held every year in September." Similarly, "We take a family trip once a year" can be rephrased as "We take a family trip every year." Utilizing different phrases can add variety and depth to your writing, allowing for a more engaging and dynamic piece.