end: ( -- ) ( R: -- ) explicit process termination

abort: ( i x -- ) ( R: j x -- ) empty the data stack and perform the function of QUIT, which includes emptying the return stack, without displaying a message.

abort?: ( flag i x -- ) ( R: j x -- ) if flag is truthly empty the data stack and perform the function of QUIT, which includes emptying the return stack, displaying a message.

"(": ( -- ) discard all tokens till ")" is fountd

constant: ( x -- ) create a new costant with name from next token and value from data stack

":": ( -- ) convert all tokens till ";" is found into a new word

debug-disable: ( -- ) set process debug flag to false.

debug-dump-word: ( -- ) prints the definition of the word specified in the next token.

debug-enable: ( -- ) set process debug flag to true.

dictionary: ( -- ) ( -- ) print list of words in dictionary

exit: ( -- ) ( -- ) explicit VM termination

"@": ( name -- ) get value in variable

help: ( -- ) ( -- ) print description of dictionary's word/var/const specified as the next token

"+!": ( x name -- ) increment variable by given value

include: ( -- ) include program file from filename specified in next token.

inspect: ( -- ) prints process contex: tokens, data stack, return stack, dictionary, meta.

"!": ( x name -- ) store value in variable

sleep: ( x -- ) sleep for given milliseconds

variable: ( -- ) create a new variable with name from next token