std

Noun std has 2 senses

• std(n = noun.state) cupid's disease, cupid's itch, dose, sexually transmitted disease, social disease, vd, venereal disease, venereal infection, venus's curse - a communicable infection transmitted by sexual intercourse or genital contact;
is a kind of contagion, contagious disease
has particulars: genital herpes, herpes genitalis, clap, gonorrhea, gonorrhoea, granuloma inguinale, granuloma venereum, lues, lues venerea, pox, syph, syphilis, lgv, lymphogranuloma venereum, lymphopathia venereum, chlamydia

• std(n = noun.communication) doctor of sacred theology - a doctor's degree in theology; "STD is from the Latin Sanctae Theologiae Doctor"
is a kind of doctor's degree, doctorate