There are more than hundred english-english dictionaries in the world. According to merriam-websters website: Webster's Third New International Dictionary, Unabridged, together with its 1993 Addenda Section, includes some 470,000 entries.
Most commonly, HIV infection is spread by having sex with an infected partner. The virus can enter the body through the lining of the vagina, vulva, penis, rectum, or mouth during sex. Although vaginal and anal intercourse are the primary risk factors, oral sex transmission is also possible.
1 HIV is the infection that causes AIDS. 2  HIV has few or no symptoms for up to 10 years or more before symptoms of AIDS develop. 3  There is no cure for HIV/AIDS, but treatment is available. 4  HIV can be spread during sex play.