MAINLINE /ˈmeɪnˌlaɪn/ Scrabble 10 Words With Friends 14 Scrabble letter values: M3A1I1N1L1I1N1E1 = 10 Definition verb inject into the vein. Examples “She is mainlining heroin” See all 100 words you can make from MAINLINE → 8-letter words Words starting with M Words ending with E ← Unscramble different letters