Bisexual, also abbreviated as bi, is a sexual orientation encompassing attraction to multiple genders and/or sexes, with the attraction being sexual, romantic, and/or emotional.[6] Bisexuality is not limited to the gender binary, but it is often misunderstood as that. The term does not have a single, universal definition or strict rules as to who may identify as bisexual. The many definitions include the following:

Bisexuals may experience attraction regardless of gender or regardless of sex,[1] feel equally attracted to the genders they are attracted to, or may have a preference for and be primarily or more strongly attracted to one (or more) gender compared to the other(s). Some bisexuals are attracted to different genders in different ways. Others feel attracted to one gender or sex at some times and not others.