There are several synonyms for the phrase "put into action" that can be used to convey a similar meaning. Some of the common synonyms include implementing, executing, applying, carrying out, enforcing, mobilizing, utilizing, and activating. All these words essentially refer to the act of taking steps to put a plan, idea, or strategy into practice. For instance, when a company decides to launch a new product, they need to put their marketing plan into action. Similarly, when a government announces a new policy, it needs to take steps to implement it effectively. By using synonyms for "put into action," one can add variety to their writing or speech and avoid repetition.