Lesbian A woman whose enduring physical, romantic and/or emotional attraction is to other women. Some lesbians may prefer to identify as gay (adj.) or as gay women. Avoid identifying lesbians as “homosexuals,” a derogatory term (see Offensive Terms to Avoid).
Gay The adjective used to describe people whose enduring physical, romantic and/or emotional attractions are to people of the same sex (e.g., gay man, gay people). In contemporary contexts, lesbian (n. or adj.) is often a preferred term for women. Avoid identifying gay people as “homosexuals” an outdated term considered derogatory and offensive to many lesbian and gay people.
Bisexual, Bi An individual who is physically, romantically and/or emotionally attracted to men and women. Bisexuals need not have had sexual experience with both men and women; in fact, they need not have had any sexual experience at all to identify as bisexual.
Transgender An umbrella term (adj.) for people whose gender identity and/or gender expression differs from the sex they were assigned at birth. The term may include but is not limited to: transsexuals, cross-dressers and other gender-variant people. Transgender people may identify as female-to-male (FTM) or male-to-female (MTF). Use the descriptive term (transgender, transsexual, cross-dresser, FTM or MTF) preferred by the individual. Transgender people may or may not decide to alter their bodies hormonally and/or surgically.
Queer Traditionally a pejorative term, queer has been appropriated by some LGBT people to describe themselves. However, it is not universally accepted even within the LGBT community and should be avoided unless quoting or describing someone who self-identifies that way.