1. 5th major revision of the core language of the World Wide Web

  2. Lightweight, interpreted, object-oriented language with first-class functions

  3. A popular general-purpose scripting language that is especially suited to web development

  4. Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.

  5. A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible

  6. One of the most widely used programming languages of all time

  7. A dynamic, interpreted, open source programming language with a focus on simplicity and productivity

  8. Swift is a general-purpose, multi-paradigm, compiled programming language developed by Apple Inc. for iOS, macOS, watchOS, tvOS, Linux and z/OS.

  9. The primary programming language you use when writing software for OS X and iOS

  10. Scala is a pure-bred object-oriented language that runs on the JVM

  11. Dynamic, functional language designed for building scalable and maintainable applications

  12. Text-to-HTML conversion tool/syntax for web writers, by John Gruber