A Straight

1. Something that is not crooked or bent such as a part of a road or track.
2. (poker) Five cards in sequence.
3. (colloquial) A heterosexual. Synonyms: hetero, breeder
4. (slang) A normal person; someone in mainstream society. Synonyms: mainstreamer
5. (slang) A cigarette, particularly one containing tobacco instead of marijuana. [from 20th c.] Synonym: straighter
6. A chiropractor who relies solely on spinal adjustment, with no other treatments. Antonym: mixer
7. A cat that has straight ears despite belonging to a breed that often has folded ears.