"Tenso" is a Spanish word that means tense or nervous. There are many synonyms that could be used in its place, including "ansioso," which means anxious, "nervioso," which means nervous, "irritado," which means irritated, and "preocupado," which means worried. Other synonyms for "tenso" include "aprensivo," which means apprehensive, "intrigado," which means intrigued, "inquieto," which means uneasy, and "preocupante," which means concerning. Synonyms are important because they allow writers to convey a variety of tones and emotions using different words. Whether you're writing fiction, non-fiction, or something in between, using synonyms can help you create a more nuanced and interesting prose.