The one that was painfully standardized to avoid this kind of question?<p>&quot;The Lisp family of languages&quot; vs &quot;Lisp&quot; is an old discussion: see <a href="http:&#x2F;&#x2F;lisp-univ-etc.blogspot.fr&#x2F;2013&#x2F;01&#x2F;common-lisp-is-just-lisp.html" rel="nofollow">http:&#x2F;&#x2F;lisp-univ-etc.blogspot.fr&#x2F;2013&#x2F;01&#x2F;common-lisp-is-just...</a> for a summary.