The L of the LGBTQIA+

Meaning

A lesbian is a homosexual woman.
If a woman identifies as a Lesbian, it means they are attracted to the same gender. This doesn't mean they love all women, nor does it mean that you can push them into a room full of women, and think that they will want to bang them all, no it's not always like that.
The word lesbian is derived from the name of the Greek island of Lesbos, home to the 6th century BCE poet Sappho. From various ancient writings, historian gathered that a group of young women were left in Sappho's charge for their instruction or cultural edification. Little of Sappho's poetry survives, but her remaining poetry reflects the topics she wrote about: women's daily lives, their relationships, and rituals.
Sometimes people say "Gay Woman" instead of well, Lesbian. And that can also be used, but if wanted to you can use Lesbian which in my opinion is much more easier for everyday talking, than just Gay Woman.
The concept of "lesbian" to differentiate women with a shared sexual orientation evolved in the 20th century. Throughout history, women have not had the same freedom or independence as men to pursue homosexual relationships, but neither have they met the same harsh punishment as homosexual men in some societies. Instead, lesbian relationships have often been regarded as harmless, unless a participant attempts to assert privileges traditionally enjoyed by men. As a result, little in history was documented to give an accurate description of how female homosexuality was expressed. When early sexologists in the late 19th century began to categorize and describe homosexual behavior, hampered by a lack of knowledge about homosexuality or women's sexuality, they distinguished lesbians as women who did not adhere to female gender roles. They classified them as mentally ill-a designation which has been reversed since the late 20th century in the global scientific community.
An attempt by natives of Lesbos (also called "Mytilene" in Greece) in 2008 to reclaim the word to refer only to people from the island was unsuccessful in a Greek court. Inhabitants of Lesbos claimed the use of lesbian to refer to female homosexuality violated their human rights and "disgrace them around the world".
Other historical figures rejected being labeled as lesbians despite their behavior: Djuna Barnes, author of Nightwood, a novel about an affair Barnes had with Thelma Wood, earned the label "lesbian writer", which she protested by saying, "I am not a lesbian. I just loved Thelma." Virginia Woolf, who modeled the hero/ine in Orlando on Vita Sackville-West, with whom she was having an affair, set herself apart from women who pursued relationships with other women by writing, "These Sapphists love women; friendship is never untinged with amorosity."