You're probably thinking of syphilis.
There is no STD that starts with the letter R. Some STDs are herpes, gonorrhea, syphilis, HIV, and chlamydia.
Kindergarten
tounge twisters that starts with ph
A similar word to fake beginning with ph is phoney
They are both technically right, but the majority of people would say 'an' STD. When talking about something that begins with a vowel-sounding letter, we tend to use 'an' - it just sounds better to say "an automobile" than "a automobile" after all. That's the reason why we have that a/an difference, the way the phrase sounds.The 'S' in STD stands for 'Sexual' and would therefore be 'a Sexual' if vocalising the unabbreviated word. But when it is abbreviated, it is pronounced 'Ess' and therefore begins with a vowel-sounding letter. It therefore sounds more natural to say 'an STD' though neither version is more grammatically correct than the other.It is a STD.
The std code starts with 022
Philippines.
it starts at 10
It is a Pharmacy.
It is a Pharmacy.
* Philadelphia * Phoenix
pH is an acronym for power of hydrogen.