Entry 2 senses · 2 variants Webster, 1913 cum /(kŭm; ko͝om)/ · IPA /kʌm/ prep. n. 01 prep. with; together with; along with; as, I work at home in an office-cum-bedroom. 1. with; together with; along with; as, I work at home in an office-cum-bedroom. 02 n. same as semen{2}; -- also spelled come. 1. same as semen{2}; -- also spelled come.[vulgar slang] See: semen{2}