People who experience romantic or sexual attraction to more than one gender fall under the umbrella term "multisexual." People who identify as omnisexual are often included in individuals who are bisexual, polysexual, or pansexual. Being omnisexual can be defined in a variety of ways.
What is omnisexual vs. pansexual?
"Pansexual" and "omnisexual" are interchangeable. These concepts differ despite their similarities. Omnisexuals know their partners' genders, whereas pansexuals don't. Unlike omnisexuals, pansexuals are gender-blind. Omnisexuals know the gender of their romantic interests, but it doesn't affect their partner choice.