Programming language is a type of language used to create computer software and applications. COBOL (5 letters) is a high-level programming language used for business applications, JAVA (4 letters) is a popular object-oriented programming language, FORTRAN (7 letters) is a general-purpose programming language used for scientific and engineering applications, CODE (4 letters) is a programming language used to create websites and web applications, and JAVASCRIPT (10 letters) is a scripting language used to create interactive webpages.