The term LGTBI represents lesbian, gay, bisexual, transgender and intersexual people. It is used to encompass any sexual orientation or gender identities that do not correspond to heterosexual norms.
Lesbian: A homosexual woman (is attracted to women)
Gay: A homosexual man (is attracted to men)
Bisexual: A person who is sexually attracted not exclusively to people of one particular gender; attracted to both men and women
Transgender: Denoting or relating to a person whose sense or personal identity and gender does not correspond with their birth sex
Intersexual: Relating or having the condition of being intermediate between male and female