PHLOGISTON /flə(ʊ)ˈdʒɪstɒn/ Scrabble 16 Words With Friends 19 Scrabble letter values: P3H4L1O1G2I1S1T1O1N1 = 16 Definition noun a hypothetical substance once believed to be present in all combustible materials and to be released during burning. See all 444 words you can make from PHLOGISTON → 10-letter words Words starting with P Words ending with N ← Unscramble different letters