There are several synonyms for the phrase "immune triggers," which refers to substances that activate the immune system. Common synonyms include immune stimulators, immune enhancers, and immune activators. Other terms that can be used to refer to immune triggers include immune modulators, cytokine inducers, and antigenic stimulators. Immune triggers can come in many different forms, including viruses, bacteria, and other pathogens, as well as environmental factors like stress and pollution. They can play an important role in maintaining a healthy immune response, but can also be harmful if they become overstimulated or trigger an inappropriate immune reaction.