Here's my take on the Forth equivalent. Defining a DOUBLE word, the usual way, rather than anonymously. (Tricky to pick a good identifier that doesn't sound li

Here's my take on the Forth equivalent. Defining a DOUBLE word, the usual way, rather than anonymously. (Tricky to pick a good identifier that doesn't sound like it's doing something with double-precision floats.) ( num -- num_doubled ) : DOUBLE DUP + ; Next up, we push 7 to the stack, define our 'function' (not a Forth term) anonymously using :NONAME which pushes an execution token value to the stack, then we immediately invoke it. This has the effect of printing 14. 7 :NONAME DUP + ; EXECUTE .