"Eligible entry" could be replaced with a variety of synonyms depending on the context. In regards to a contest or giveaway, some options could be "qualified submission," "valid entry," or "acceptable application." If discussing a job or academic opportunity, phrases like "worthy candidate," "suitable applicant," or "qualified candidate" could be used. However, it is important to consider the specific requirements or criteria that make an entry eligible in order to choose the most appropriate synonym. Ultimately, using clear and concise language to communicate eligibility criteria is essential for ensuring fairness and transparency in any selection process.