A '''[dodekalogue%|%word]''' is one of the basic syntactical units in [Tcl]. A word is a string of characters, and a [Command%|%command] is a [list] of words. [AMG]: The difference between speaking of a command as a list of ''words'' versus a list of ''arguments'' is whether or not the name of the command is intended to be included in the list, with ''words'' including the name. Also note that the name of the command may comprise multiple words, as in a command [ensemble]. A [command prefix] is an example of a list of words because it must, by necessity, include part or all of the name of the command, in addition to including zero or more of the arguments to the command. <> Tcl Syntax