Heterosexuality is romantic attraction, sexual attraction or sexual behavior between persons of the opposite sex or gender.

What does straight person mean?

Heterosexual (straight) - describes a person who is attracted only or almost only to the "other" gender. Homosexual (gay, lesbian, queer) - describes a person attracted only or almost only to those of the same gender.

What does straight mean in slang?

1. The definition of straight is something that is in order, not curly or wavy or is slang for heterosexual or not under the influence of drugs or alcohol.