Samson Biblical hero that loses his strength when his hair is cut. A very strange weakness.
Samsonite Luggage that supposed to be as strong as Samson. Probably until the handles cut off, then it's weak.
Science Fiction (SF) A genre of tale telling that involves usually alternate realities, usually involving science or fantasy.
SciFi Science Fiction cable channel. Another acronym for Science Fiction.
Sex Most humans are predictable until they learn about this. In nature, it's the means to reproduce a species (including us) with a method that guarantees exchange of genetic material with the greatest amount of diversity. In practice, it becomes a social force that few can ignore, whether they admit it or not. Enjoyable for the most part.
Simpsons, The TV Show. Cartoon situation comedy.
Sin What many religions accuse you of performing, if you don't meet a specific biblical standard, or one of the leaders of the church doesn't like you for some reason. Also used to oppose sex. Though the connection isn't really obvious, other than it makes you feel good.
Situation comedy Type of television show, usually a series, that involves comedic situations with a recurring cast of characters.
Slavery The state and act of treating living things, usually people, as property. Usually racial in nature, most famously, white Americans enslaving black africans, in reality is usually politically or economically motivated.
Snake A reptile that for the most part has no legs and is characterized by a long tubular shape. Has come to have negative connotations. One of those things that if all of them were actually killed would negatively affect the world. Can be poisonous or not. Supposedly the shape the Devil took to offer the apple to Eve.
Society Some group, usually people, who gather together because of some common purpose.
Star Trek TV Series. SciFi series from the 60s created a huge fan base. Generated movies (at least 6) and spin-off TV Series (at least 4) Star Trek: The Next Generation, Deep Space Nine, Voyager, Enterprise.
Stereotype A perception of a person or object that is common or comfortable, usually regardless of the actuality of that person or object. For example, a common stereotype is that pit bull dogs are vicious killers that can't ever really be tamed. This is not true. Pit bull dogs have been bred to do specific things, but pit bulls can be as gentle as lambs. They are probably genetically pre-disposed to be aggressive, but that is because they were bred and trained to be that way by humans.