| A | B |
| sprite | Like an actor on the stage who knows how to do many different things, such as walk around the stage and speak the lines of the play |
| costume | Picture that can be "worn" by a sprite |
| transparency | How much you can see behind an image |
| list | A ordered collection of items |
| string | A sequence of characters (letters, digits, punctuation, etc.) |
| substring | A piece of some existing string |
| concatenate | To make a bigger string by connecting two or more smaller strings |
| debugging | The process of testing, finding problems, and fixing them |
| procedure | A named sequence of instructions that may take inputs and may report a value |
| reporter | A block that reports a value and has an oval shape |
| command | A block that tells the computer to do something without reporting a value and has a jigsaw puzzle shape |
| expression | Either a constant value or a call to a reporter block including its inputs |
| value | Can be a number, a string, a sprite, a costume, a script, a list—anything; what expressions are evaluated to produce |
| algorithm | A sequence of steps that are usually performed by a computer |
| pseudocode | A algorithm written in human language |
| parameter | The input name |
| argument | The input value |
| iteration | A repeating program structure |
| personally identifiable information | Information that can let others figure out who you are |
| infinite loop | When a program keeps running forever |
| code segment | A sequence of steps that are usually performed by a computer |