Crossword clues for the word: LUB The word LUB has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for LUB Showing 1 to 5 of 5 results Clue(s) "Oil, for one: Abbr." Friction reducer: Abbr. Half a heartbeat Oil or grease: Abbr. Oil: Abbr.