When it comes to adding excitement or energy to something, there are a variety of synonyms for the phrase "adds zip." Some alternatives to consider include injecting vigor, infusing liveliness, spicing things up, adding zest, putting some pep in one's step, and bringing a burst of energy to a situation. Other possibilities include intensifying the experience, revving up the mood, electrifying the atmosphere, triggering enthusiasm, and sparking excitement. Whether you're looking to describe the effect of someone's presence or a new ingredient in a recipe, there are plenty of ways to convey the idea of adding zip to something.