LGBTQ is an umbrella acronym for lesbian, gay, bisexual, transgender, and queer or questioning identities.
LGBTQ stands for lesbian, gay, bisexual, transgender, and queer, with the Q sometimes also standing for questioning. It is an umbrella term for people whose sexual orientation or gender identity falls outside straight and cisgender.
The acronym is sometimes extended to LGBTQ+ or LGBTQIA+, where the extra letters include intersex, asexual, and others, and the plus signals everyone not named explicitly.
It works as shorthand for a broad and varied community rather than a single group with one experience.
In dating, the term shows up on profiles and in spaces that welcome or center these identities.
Language here keeps evolving, and different people prefer different labels. The respectful default is to use the words a person chooses for themselves.