Chair: Short form of `Chairperson' or better known as `Boss'.

Con: Short form of `Convention', the type of event your at.

Concom: Short form of `Convention Committee', the group who put everything together.

Fan: Short form for a `Fanatic'.

Fandom: the community of people who enjoy popular culture, who visit conventions, and take part.

Fen: many fans, plural of fan.

Filk or Filking: the `music' of a very small part of fandom.

Goh: Short form of `Guest(s) of Honour'.

Neo: person who has never been to an event like this, if this is your 1st expo, you're a `Neo'.

Panels: Discussion sessions, usually involving the guests, on topics related to the specific genre.

Pros: Short for `Professional' meaning one who makes a living at writing, acting, editing, etc.

Registration: the act of gaining a membership to a convention.