one who flies in a vehicle above  for NASA or the military is considered an astronaut (with no qualifier)
wˈʌn hˌuː flˈaɪz ɪn ɐ vˈiəkəl əbˌʌv fɔːɹ nˈæsɐ ɔːɹ ðə mˈɪlətˌɛɹi ɪz kənsˈɪdɚd ɐn ˈæstɹənˌɔːt wɪð nˈoʊ kwˈɔlɪfˌaɪɚ