LGBT, LGBTQ, LGBTQIA (adj.)
Per AP Style, acceptable in all references for lesbian, gay, bisexual and transgender, or lesbian, gay, bisexual, transgender and questioning and/or queer. In quotations and the formal names of organizations and events, other forms such as LGBTQIA and other variations are also acceptable with the other letters explained. I generally stands for intersex, and A can stand for asexual (a person who doesn’t experience sexual attraction), or ally (some disagree with this use of the abbreviation for a person who is not LGBT but who actively supports LGBT communities) or both. Use of LGBT or LGBTQ is best as an adjective and an umbrella term. Don’t use it, for instance, when the group you’re referring to is limited to bisexuals. Walters joined the LGBTQ business association. Queer is an umbrella term covering people who are not heterosexual or cisgender and is acceptable for people and organizations that use the term to identify themselves. Do not use it when intended as a slur. In all instances, it is important to communicate with the subject of an article or communication as to how he, she or they want to be referred.