ˌkɒmpəˈzɪʃən ˌkɒnstɪˈtjuːʃ(ə)n ˌkɑnstɪˈtuʃ(ə)n ɪˈstæblɪʃmənt fɔɹ.ˈmeɪ.ʃən fə(ɹ).ˈmeɪ.ʃən ˈɔː(ɹ).ɡən.aɪˌzeɪ.ʃən ˌɔɹɡənɪˈzeɪʃən ˌɔːɡənaɪˈzeɪʃən ˌɔɹɡənɪˈzeɪʃən ˌɔɹɡənaɪˈzeɪʃən the act of forming or establishing something the constitution of a PTA group last year it was the establishment of his reputation he still remembers the organization of the club the way in which someone or something is composed law determining the fundamental political principles of a government