queer

First recorded in 1500–10; perhaps from German quer “oblique, cross, adverse”

When referring to LGBT+ identities, the label queer can be offensive and painful or embraced and affirming—it all depends on the speaker’s identity, relationship to the subject, and the context of use. In-group vocabulary is not always appropriate for use by others, and it is best to refer to a person by whatever term they have told you they prefer.

Historically, queer has meant “strange” in a way that departs from convention. Since the early 20th century, it has also had the meaning “gay or lesbian,” and for much of the time has been used with disparaging intent and perceived as insulting. Since the 1980s, queer has increasingly been adopted especially among younger members of the gay and lesbian community as a positive term of self-reference. However, the term is not universally accepted within the LGBT community, and might still be viewed by some as degrading.
Queer is also a term used by activists and academics: queer politics; scholars of queer literature. The term has more recently come to include any person whose sexuality or gender identity falls outside the heterosexual norm or the gender binary. A person identifying as queer can be gay, lesbian, bisexual, transgender, genderqueer, gender-fluid, etc., and the use of queer allows for the expression of LGBTQ community membership without requiring any specific label.
More broadly, within academia, “to queer” can even refer to the act of interpreting a text using any non-normative or marginalized perspective. This sense plays with the dual meaning of queer as referring to people whose genders and sexualities have been marginalized, and as referring to something that is unusual or unconventional. In this sense, introducing the perspectives of people of color or people with disabilities would also be considered queering a text in literary or cultural criticism.

1. See strange.

C16: perhaps from German quer oblique, ultimately from Old High German twērh

Although the term queer meaning homosexual is still considered highly offensive when used by non-homosexuals, it is often used by homosexuals themselves as a positive term, as in queer politics, queer cinema