An individual who is physically, romantically, emotionally and/or spiritually attracted to men and women. Bisexuals need not have had equal sexual experience with both men and women; in fact, they need not have had any sexual experience at all to identify as bisexual.

Describes a person who is not open about his or her sexual orientation.

A lifelong process of self-acceptance. People forge a lesbian, gay, bisexual or transgender identity first to themselves and then may reveal it to others. Publicly identifying one's sexual orientation may or may not be part of coming out.

The adjective used to describe people whose enduring physical, romantic, emotional and/or spiritual attractions are to people of the same sex (e.g., gay man, gay people). In contemporary contexts, lesbian (n.) is often a preferred term for women. Avoid identifying gay people as "homosexuals" (see Offensive Terminology to Avoid).

One's internal, personal sense of being a man or a woman (or a boy or girl.) For transgender people, their birth-assigned sex and their own internal sense of gender identity do not match.

External manifestation of one's gender identity, usually expressed through "masculine," "feminine" or gender variant behavior, clothing, haircut, voice or body characteristics. Typically, transgender people seek to make their gender expression match their gender identity, rather than their birth-assigned sex.

A person whose enduring physical, romantic, emotional and/or spiritual attraction is to people of the opposite sex. Also straight.

The attitude that heterosexuality is the only valid sexual orientation. Often takes the form of ignoring lesbians, gay men and bisexuals. For example: a feature on numerous Valentine's Day couples that omit same-sex couples.

Outdated clinical term considered derogatory and offensive by many gay people. Gay and/or lesbian accurately describe people who are attracted to members of the same sex. (see Offensive Terminology to Avoid)

Fear of lesbians and gay men. Prejudice is usually a more accurate description of hatred or antipathy toward LGBT people.

A woman whose enduring physical, romantic, emotional and/or spiritual attraction is to other women.

Acronyms for "lesbian, gay, bisexual and transgender." LGBT and/or GLBT are often used because they are more inclusive of the diversity of the community.

Inaccurate term often used by anti-gay extremists to denigrate lesbian, gay, bisexual and transgender lives. Avoid using. As there is no one heterosexual or straight lifestyle, there is no one lesbian, gay, bisexual or transgender lifestyle. (see Offensive Terminology to Avoid)

Traditionally a pejorative term, queer has been appropriated by some LGBT people to describe themselves. Some value the term for its defiance and because it can be inclusive of the entire LGBT community. Nevertheless, it is not universally accepted even within the LGBT community and should be avoided unless quoting someone who self-identifies that way.

The classification of people as male or female. At birth, infants are assigned a sex based on a combination of bodily characteristics including: chromosomes, hormones, internal reproductive organs, and genitals.

The scientifically accurate term for an individual's enduring physical, romantic, emotional and/or spiritual attraction to members of the same and/or opposite sex, including lesbian, gay, bisexual and heterosexual orientations. Avoid the offensive term "sexual preference," which is used to suggest that being gay or lesbian is a choice and therefore "curable."

An umbrella term 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 choose to alter their bodies hormonally and/or surgically.

An older term which originated in the medical and psychological communities. Many transgender people prefer the term "transgender" to "transsexual." Some transsexual people still prefer to use the term to describe themselves. However, unlike transgender, transsexual is not an umbrella term, and many transgender people do not identify as transsexual. It is best to ask which term an individual prefers.