Costa_rica rhymes with:
alarica, chandrika, enrica, eureka, farica, fredericka, frederika, paprika, rica, ricca
Costa_rica sounds like:
cadres, casters, castro's, castrucci, caterers, caters, catharsis, cather's, cathers, catheters, cauterize, cauterizes, cedars, cedras, cedras', cedras's, cedric, chatterjee, cheaters, cheddars, chesters, chitra's, citric, citrosuco, citrus, citrus's, coasters, coauthors, codrescu, codrescu's, costars, custer's, cutters