1. Shorthand or umbrella terms for all persons who have a non-normative (or queer) gender identity or sexuality, there are many different initialisms people prefer. LGBTQ is Lesbian Gay Bisexual Transgender and Queer and/or Questioning (sometimes people at a + at the end in an effort to be more inclusive)
2. Umbrella term for all people whose sexual orientations, gender identities, gender expressions and/or sex characteristics place them outside culturally mainstream categories.