Crossword clues for the word: ITU The word ITU has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for ITU Showing 1 to 9 of 9 results Clue(s) Large labor union: Abbr. One of the unions. Printers' group. Printers' org. Printers' union. Telecommunications org. Typographer's org. Typographers' union: Abbr. Typographers' union.