operationalize UK /ɒpəˈɹeɪʃ(ə)nəlʌɪz/US /ˌɑpəˈɹeɪʃənəˌlaɪz/ verb2 •To make operational.I have a lot of sexual fantasies that I'm never going to operationalize. I enjoy them just as fantasies. — 1981 •To define (a concept) in such a way that it can be practically measured.To operationalize a concept is to identify those variables in terms of which the phenomenon represented by the concept can be accurately observed. — 1956 formsoperationalized · operationalizing · operationalizes