authentic(of undisputed origin) adjective [UK: ɔː.ˈθen.tɪk] [US: ə.ˈθen.tɪk]The gem I bought from the shop is authentic. = La gema que compré en la tienda es auténtica.
genuine(real, authentic) adjective [UK: ˈdʒe.njʊɪn] [US: ˈdʒe.njə.wən]Her anger was genuine. = Su enojo era auténtico.
real [realer, realest]adjective [UK: rɪəl] [US: riː.l̩]These are real. = Estas son auténticas.
true [truer, truest](Genuine) adjective [UK: truː] [US: ˈtruː]True love is within us. = El auténtico amor lo llevamos dentro.