database — A database is a collection of data that is stored in a computer and that can easily be used and added to.
Four-or-more syllable rhymes
amalgamate — When two or more things, especially organizations, amalgamate or are amalgamated, they become one large thing.
Four-or-more syllable rhymes
amalgamated — Combined from two or more entities into one specific entity whilst retaining the defining characteristics of the original source entities.