注册 /zhùcè/ meaning in English

enroll [enrolled, enrolling, enrolls]▼(to enter (a name) in a register, roll or list)
verb
[UK: ɪn.ˈrəʊl] [US: ɪnˈroʊl]

sign up▼(to add one's own name to the list of people who are participating in something)
verb
[UK: saɪn ʌp] [US: ˈsaɪn ʌp]

registration [registrations]▼(the act of signing up or registering for something)
noun
[UK: ˌre.dʒɪ.ˈstreɪʃ.n̩] [US: ˌre.dʒə.ˈstreɪʃ.n̩]