The phrase "served to" is often used to describe the effect of an action or event on something or someone. However, there are a variety of synonyms that can be used to convey the same meaning in a different way. Some alternatives to "served to" include "contributed to," "resulted in," "led to," "provoked," "triggered," "induced," "instigated," "caused," "sparked," "prompted," "generated," and "brought about." Each of these synonyms can be used to convey a similar idea, but may be more appropriate in certain contexts or convey different connotations. By considering the specific meaning and tone you want to convey, you can choose the most fitting synonym for your writing.