SUBPHYLUM Scrabble 21 Words With Friends 25 Scrabble letter values: S1U1B3P3H4Y4L1U1M3 = 21 Definition noun (biology) a taxonomic group ranking between a phylum and a class. See all 95 words you can make from SUBPHYLUM → 9-letter words Words starting with S Words ending with M ← Unscramble different letters