If you're new to the community, you maybe questionned what all these random letters meant. Good News: you'll learn them today! These symbols have different versions and all these version either adds or remove letters, here some examples: LGBT; LGBTQ+; LGBTQA+; LGBTQIAPD. It maybe has longer versions, but we understand the concept.
So, these letters stands for
Lesbian
Gay
Bisexual
Trans
Queer
Intersex
Asexual
Pansexual
Demisexual
Of course, there's many more that could fill these letters. I only filled them with the popular ones. So don't worry, I didn't forget about you, young queer, your sexuality/gender should be in the guide. If not, tell me in the comments if I forgot about you and I'll add it!