Scaling back is a common phrase used to describe the act of making something smaller or reducing its size, scope, or level of activity. However, there are several other terms that can be used as synonyms for this expression. For example, you can use the terms "trimming down," "paring back," "reducing," "trimming," "cutting back," "streamlining," "curtailing," "shrinking," "minimizing," and "moderating." These words can be used interchangeably, depending on the context and the level of reduction required. Using these synonyms for scaling back can help add variety and depth to your writing and communication.