Software used for turning raw video into small files. Codec is short for compressor/decompressor. That is, it compresses the video you embed into your .swf (or store as an .flv file) and then decompresses the video when the user watches it. Flash Player 8 supports On2's VP6 codec as well as the Sorenson Spark codec (which also works in Flash Player 7 and 6).
command
A set of recorded steps that can be played back while you're editing a Flash file. It is similar to a macro.
component
A movie clip with parameters unique to each instance. A component can include a custom user interface to populate the parameters.
concatenate
To connect. ActionScript uses the plus symbol (+) to concatenate strings. If both operands surrounding the + are numbers, Flash performs addition.
coordinates
Numbers signifying a place in a Cartesian plane, represented by (x,y). The top-left pixel in Flash, for instance, is (0,0) or (0x,0y).