NITRIFY Scrabble 13 Words With Friends 13 Definition verb convert into nitric acid, nitrous acid, or nitrate, especially with the action of nitrobacteria. verb treat with nitrogen or a nitrogen compound. — synonyms: nitrogenize, nitrogenise verb treat (soil) with nitrates. See all 21 words you can make from NITRIFY → 7-letter words Words starting with N Words ending with Y ← Unscramble different letters