Navicerts are essentially a certificate issued by a government that allows vessels to engage in trade with certain countries. There are a number of synonyms that can be used to describe navicerts, including trade certificates, shipping certificates, and export certificates. These documents are necessary for vessels to comply with international trade laws and regulations, and they are issued by governments as a means of controlling the flow of goods between different nations. Other synonyms for navicerts may include import/export permits, custom documents, and international trade licenses. Whatever the term used, these certificates are a vital component of global trade, helping to ensure that cargo moves efficiently and securely.