Crossword clues for Sign here marks 4 lettersAnswerClueEXESWhere-to-sign marksEXESSign here marksASISSign on marked down wares.EXITSWhat illuminated signs markTHIRTYSign marking end of journalistic copy.SEGNOSSigns marking musical repeats.ELMIRACity whose welcome sign features Mark TwainCANADADAYAnnual July 1 celebration marking the 1867 signing of the British North America ActEXITSThey're often marked with red signsEXITSThey're marked with lit signsPREWhat's between 21-Across and a green check mark, on airport signsENDASHMark like a minus signTSAPRETerm with a check mark on an airport signLABELSCARMark remaining in the outline of a sign that's been removed from an old storefront