ONOMASTIC /ˌɒ.nəʊˈmæs.tɪk/ Scrabble 13 Words With Friends 16 Scrabble letter values: O1N1O1M3A1S1T1I1C3 = 13 Definition adjective of or related to onomastics. Examples “he published a collection of his onomastic essays” See all 304 words you can make from ONOMASTIC → 9-letter words Words starting with O Words ending with C ← Unscramble different letters