əˈkjuːmjʊˌleɪt ə.ˈkjum.jə.ˌleɪt əˈmæs 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