Homosexualism
Part of speech: noun
Definition: A sexual attraction to (or sexual relations with) individuals of the same sex.
Gayness
Part of speech: noun
Definition: The state of being gay (in the sense of "homosexual").
Homosexualism as a noun is a sexual attraction to (or sexual relations with) individuals of the same sex. while Gayness as a noun is the state of being gay (in the sense of "homosexual").
Part of speech: noun
Definition: A sexual attraction to (or sexual relations with) individuals of the same sex.
Part of speech: noun
Definition: The state of being gay (in the sense of "homosexual").
We hope you now know whether to use Homosexualism or Gayness in your sentence.