(logic) Initialism of first-order logic.

(law) Abbreviation of folio.

(law) Abbreviation of folios.

Nonsense word traditional to English ballads and madrigals.

Alternative form of folderol / A gaudy thing of little value; a trinket. / Nonsense. / Excessive efforts expended on a something trivial; much ado about nothing.

Alternative form of folderol

plural of fol de rol

plural of fol-de-rol

Coming next, either in sequence or in time. / About to be specified. / (of a wind) Blowing in the direction of travel.

After, subsequent to.