Crossword clues for the word: BRIGHTEN The word BRIGHTEN has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for BRIGHTEN Showing 1 to 5 of 5 results Clue(s) Become cheerful Cheer from Tories hosted by Scottish eminence Cheer up when you mention the seaside Illuminate Make more colorful