HALOGEN /ˈheɪ.lə.d͡ʒən/ Scrabble 11 Words With Friends 13 Definition noun any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions. See all 98 words you can make from HALOGEN → 7-letter words Words starting with H Words ending with N ← Unscramble different letters