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.
HIV rash is mainly caused due to an underlying infection by the HIV virus. It can also develop as a side effect to the intake of medications that are used to treat and manage the symptoms of the infection. The rashes typically do not spread via direct contact and hence are non-contagious.