What is LGBT?

LGBTQ (formerly LGBT) is a generic name and an abbreviation for lesbian, gay, bisexual, transgender and queer expressions and other identities. These terms describe different sexual orientations and who one is attracted to. How one’s sexual orientation is defined is then determined based entirely on oneself.

What do the different concepts mean?

Gay is a person who becomes attracted to or in love with a person of the same sex.
Bisexual is a person who becomes attracted to or in love with a person whether male or female.
Transgender is a collective name for various gender identities. One who define themselves as transgender can, whether biological or legal sex, perceive themselves as male, female, both man and woman, or do not identify themselves as any of this. Transgender people may like others to be homosexual, bisexual or heterosexual.
Queer has several meanings. It can be used as an identity and then face the desire to avoid having to identify themselves and a desire to challenge gender norms. Queer is also a term that can describe a critical approach to standards and then both about sex and sexual orientation.