Crossword clues for the word: PHOT The word PHOT has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for PHOT Showing 1 to 5 of 5 results Clue(s) C.G.S. unit of illumination. Cameraman's occ. Illumination unit Light: comb. form Unit equal to 929 foot-candles.