əˈkjuːmjʊˌleɪt ə.ˈkjum.jə.ˌleɪt əˈmæs kəˈlɛkt kəmpʌɪl kəmˈpaɪl kənˈɡlɒm.(ə)ɹ.ət kənˈɡlɑm.(ə)ɹ.ət ˈɡæðə ˈɡæðɚ increase in amount by collecting or gathering Journals are accumulating in my office The work keeps piling up get or gather together I am accumulating evidence for the man's unfaithfulness to his wife She is amassing a lot of data for her thesis She rolled up a small fortune