Crossword clues for the word: RAINBARREL The word RAINBARREL has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for RAINBARREL Showing 1 to 5 of 5 results Clue(s) *Collector of gutter runoff Collector of rooftop runoff Stormwater retention tank Vessel under the eaves Water catcher