Crossword clues for the word: BUILDINGBLOCK The word BUILDINGBLOCK has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for BUILDINGBLOCK Showing 1 to 5 of 5 results Clue(s) An element in Dublin knocked around with big rugby player Association of constructors? Lego bit, e.g. Part of a toy construction set Start of a house?