NINETIETH /ˈnaɪn.ti.əθ/ ► audio Scrabble 12 Words With Friends 13 Scrabble letter values: N1I1N1E1T1I1E1T1H4 = 12 Definition adjective the ordinal number of ninety in counting order. — synonyms: 90th noun position 90 in a countable series of things. See all 56 words you can make from NINETIETH → 9-letter words Words starting with N Words ending with H ← Unscramble different letters