Question

what is mean by std ​

Answer 1

the meaning of std is studying

Answer 2

std is sexually transmitted diseases this means they are often- but not  exclusively -spread by sexual intercourse  like HIV ,chlamydia ,genital herpes, genital warts gonorrhea ,some forms of hepatitis ,syphilis,and trichomoniasis are std

std used to be called venereal diseases or VD.