Как перевести attendant на русский язык

Часть речиЗначениеАнглийские синонимы
nan event or situation that happens at the same time as or in connection with another
na person who is present and participates in a meeting
nsomeone who waits on or tends to or attends to the needs of another
attendant; attendertender
soccurring with or following as a consequence
sbeing present (at a meeting or event, etc.)