fylfotA swastika, especially one with the arms bent in an anticlockwise direction.
FylingdalesA civil parish in North Yorkshire, England, previously in Scarborough district.
FylingthorpeA village in Fylingdales parish, North Yorkshire, England, previously in Scarborough district (OS grid ref NZ9404).
FynA molecule, present in the signalling pathway of integrins, activating ras.
fynbosVegetation unique to the Cape Floral Kingdom, largely scrub, exceptionally biodiverse, including particularly large numbers of species of Proteaceae, Restionaceae, and Ericaceae.
FyodarA transliteration of the Belarusian male given name Фёдар (Fjódar).
FyodorA transliteration of the Russian male given name Фёдор (Fjódor).
fyrdIn early Anglo-Saxon times, an army that was mobilized from freemen to defend their shire, or from select representatives to join a royal expedition.
fyrdmanAn English militiaman of the Saxon period; often a land worker called to arms in support of the king or a local lord, and usually armed with a spear and shield.