Pentagonese refers to the language used by the Pentagon officials and military personnel. However, if you are looking for synonyms for this term, you can try using words such as military jargon, war lingo, military language, or defense speak. These terms refer to the specialized language used by the military that can be difficult for civilians to understand. Other options include military slang, battle-speak, or combat terminology. Using these synonyms can help you to better understand the terminology used by military personnel and improve your communication with them. It can also be helpful in deciphering military documents and reports.