1. a reusable chunk of code with inputs and outputs
2. a name that can be associated with a value
3. a control structure for performing actions on each element of a sequence
4. a control structure for branching the execution of a program
5. a data structure for mapping keys to values
6. a data structure for storing elements in an ordered sequence
7. a categorization of values of similar kinds that determines what you can do with the values.
8. a sequence of data stored in your computer's long term memory specific instances of data written directly in source code
9. a type that represents textual data
10. a collection of functions, classes, and variables available to be imported
11. a sequence of coded instructions that manipulate data inside a computer