LGBQ stand for lesbian, gay, bisexual, and queer. These are all sexualities.
Lesbian generally refers to a person who identifies as female who is attracted to another person who identifies as female.
Gay generally refers to a person who identifies as male who is attracted to another person who identifies as male.
Bisexual refers to a person of any gender who is attracted to both male and female identified individuals.
Queer refers to an individual who is not exclusively attracted to a person of the opposite sex, but does not subscribe to restrictive labeling. Those who identify as queer (or sometimes genderqueer) have non-binary identities, meaning they don’t identify with either the male or female gender.
The T in LGBTQ stands for transgender. This is a gender identity rather than a sexuality. It is important to remember that gender is not automatically connected to sexuality.
Transgender generally refers to individuals whose gender identity does not match the sex they were assigned at birth.