AGGREGATION /æɡɹəˈɡeɪʃən/ Scrabble 14 Words With Friends 18 Definition noun several things grouped together or considered as a whole. — synonyms: collection, accumulation, assemblage noun the act of gathering something together. — synonyms: collection, collecting, assembling See all 398 words you can make from AGGREGATION → 11-letter words Words starting with A Words ending with N ← Unscramble different letters