plural of pro-form

(paper) Abbreviation of quarto, a paper size. / (printing) Abbreviation of quarto, a corresponding book size.

(transitive) To remove a veil from; to uncover; to reveal something hidden. / (transitive) to show, especially for the first time / (intransitive) To remove a veil; to reveal oneself.

(poker) A pot separated from the main pot, containing the chips bet and raised by players, up from the amount wagered by the player all-in with the fewest chips.