Crossword clues for the word: SIGNSIN The word SIGNSIN has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for SIGNSIN Showing 1 to 5 of 5 results Clue(s) Inks the attendance sheet Makes one's presence official Records one's arrival Records one's arrival on a register Writes one's name in an attendance log: 2 wds.