will compile the following word at the run-time of the
current-word which is a compiling-word. The point is that
POSTPONE takes care of the fact that word may be
an IMMEDIATE-word that flags for a compiling word, so it
must be executed (and not pushed directly) to compile
sth. later. Choose this word in favour of COMPILE (for non-immediate words) and [COMPILE] (for immediate
words)