Crossword clues for the word: JOININ The word JOININ has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for JOININ Showing 1 to 7 of 7 results Clue(s) "Sing along, maybe" Add one's voice to others Become part of a sing-along Begin participating Hum along, say Start singing along, say Take part