Intervene in our world can be replaced with several synonyms that depict the act of stepping in and playing a role in shaping the world around us. Other synonyms for intervene are intrude, mediate, interpose, involve, intercede, and interject. When someone intervenes, they often act as a mediator in resolving conflicts or disputes. It can also show someone's involvement in a particular situation or a desire to manipulate a situation to achieve a specific outcome. Ultimately, intervene symbolizes the desire to assert oneself in the world and have a say in the events shaping our environment.