Definitions
1.NounThe process by which a candidate for public office is selected, usually by a political party
2.NounSelection in advance
3.NounThe preference for a mate found attractive by other members of one's sex.
4.NounThe process of a jury selecting entries to be shown in a competition when there are too many entries for the audience or schedule. The term preselection is often used with the opposite meaning in demoscene context, i.e. selecting entries not to be shown.