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 that 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