specialization [specializations](area in which one specializes) noun [UK: ˌspe.ʃə.laɪ.ˈzeɪʃ.n̩] [US: ˌspe.ʃə.lə.ˈzeɪʃ.n̩]
specialty [specialties](that in which one specializes) noun [UK: ˈspe.ʃəl.ti] [US: ˈspe.ʃəl.ti]Finding missing children is my specialty. = Att hitta försvunna barn är min specialitet.