Gay: Man feels sexually attracted to another man
Lesbian: Woman feels sexually attracted to another woman
Bisexual: Woman or man is attracted to both men and women
Pansexual: Any gender is attracted to all genders
Asexual: One is not attracted to any gender
Queer: One is confused and generally is still trying to figure out what catagory they are under (Note: this is a slur and not very popularly used)
Transgender: One who doesn't feel like their gender assigned at birth and switched to opposite gender.
Non-binary: One who does not classify as either a female or male
Gender fluid: One who may feel more like a boy one day and a girl another day
Gender Queer: One who may be confused about what gender they feel like