one who flies to the International Space Station as part of a "privately funded, dedicated commercial spaceflight on a commercial launch vehicle dedicated to the mission ... to conduct approved commercial and marketing activities on the space station (or in a commercial segment attached to the station)" is considered a private astronaut by NASA (as of 2020, nobody has yet qualified for this status)
wˈʌn hˌuː flˈaɪz tə ðɪ ˌɪntɚnˈæʃənəl spˈeɪs stˈeɪʃən æz pˈɑːɹt əvə "pɹˈaɪvətli fˈʌndᵻd, dˈɛdᵻkˌeɪɾᵻd kəmˈɜːʃəl spˈeɪsflaɪt ˌɔn ɐ kəmˈɜːʃəl lˈɑːntʃ vˈiəkəl dˈɛdᵻkˌeɪɾᵻd tə ðə mˈɪʃən ... tə kəndˈʌkt ɐpɹˈuːvd kəmˈɜːʃəl ænd mˈɑːɹkɪɾɪŋ æktˈɪvᵻɾiz ɔnðə spˈeɪs stˈeɪʃən ɔːɹ ɪn ɐ kəmˈɜːʃəl sˈɛɡmənt ɐtˈætʃt tə ðə stˈeɪʃən" ɪz kənsˈɪdɚd ɐ pɹˈaɪvət ˈæstɹənˌɔːt baɪ nˈæsɐ æz ʌv tˈuː θˈaʊzənd twˈɛnti, nˈoʊbɑːdi hɐz jˈɛt kwˈɔlᵻfˌaɪd fɔːɹ ðɪs stˈæɾəs