Gay - Men that are only attracted to men. Gay can also be used to describe homosexual men and women.
Bisexual - A person that is attracted to both sexes.
Transgendered - A person that has/is transitioning to the opposite sex, as they were born as the wrong sex/in the wrong body. (Female to male. Male to female).
Queer - A person that does not want to label themselves as, e.g. Lesbian, so they call themselves queer instead.
Questioning - Someone that is questioning their sexual orientation, unsure which gender/s they are attracted to.
Intersex - A hermaphrodite.
Asexual - A person that isn't sexually attracted to either gender.
Allies - A straight person that supports the LGBT(QQIAAP) community.
Pansexual - A person that is attracted to a person because of their personality. They do not care what gender they date, they care about what is on the inside.
All of these make up LGBTQQIAAP.