red ball noun 2adjective 1forms 1 noun2 •First-class cricket, as distinct from limited overs cricket or "white ball". Mainly used to play tests.Australia is scheduled to play five red ball matches in two weeks. •(US, slang) A high-profile high-priority case which draws political or media attention.A police-involved shooting is by definition a red ball and, by definition, a red ball requires every warm body. — 1991 adjective1 •Of or related to priority freight or the trains that carry it.Perishable freight, carloads of package freight or merchandise, oils, etc., are designated as Red Ball freight. — 1905 formsred balls