In print, NO. You really can&#x27;t interchange the two. As already said, in handwriting they may look similar, however we would never mean the actual ÿ, since it simply is something else which is used in Greek and French (and others).<p>There&#x27;s even a section about this on wikipedia: <a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;IJ_(digraph)" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;IJ_(digraph)</a> subsection &quot;technical details&quot;.