The term 'specialized lingo' can be defined as a type of language that is used by a particular group or profession. The crossword solution for this term is 'ARGOT, ' which is a French word meaning 'SLANG.' ARGOT is a type of specialized lingo that is used by a specific group of people, usually within a certain profession or social circle. It is often used to create an exclusive atmosphere and to keep outsiders from understanding the conversation.