The phrase "infringe on" means to violate or encroach upon something or someone's rights, privacy, or territory. Some synonyms for "infringe on" include "trespass," "interfere," "invade," "encroach," "violate," "breach," "transgress," "disrupt," and "trample." These words convey a sense of intrusion and disregard for boundaries, whether physical or legal. When someone infringes on another's rights or space, it often leads to conflict or resentment. Therefore, it's important to be mindful of how our actions may infringe on others and to respect boundaries in our interactions with others.