1) British slang 2) Investigator 3) Platform game 4) Research worker 5) Researcher 1) Expert 
A boffin is British slang for a scientist, engineer, or other person engaged in technical or scientific work. The original World War II conception of war-winning researchers means that the term tends to have more positive connotations than related terms like egghead, nerd, or geek.{fact|date=July 2014} ==Origin== Originally, the word was armed-for...
[n] - (British slang) a scientist or technician engaged in military research
noun (British slang) a scientist or technician engaged in military research
a scientist or technical expert.