| FACTORISES | • factorises v. Third-person singular simple present indicative form of factorise. • FACTORISE v. to reduce a number to its prime factors, also FACTORIZE. |
| FAGOTTISTS | • fagottists n. Plural of fagottist. • FAGOTTIST n. a bassoon player. |
| FASHIONIST | • fashionist n. (Archaic) An obsequious follower of fashion. • FASHIONIST n. a follower or setter of fashion, also FASHIONISTA. |
| FASTIDIOUS | • fastidious adj. Excessively particular, demanding, or fussy about details, especially about tidiness and cleanliness. • fastidious adj. Overly concerned about tidiness and cleanliness. • fastidious adj. Difficult to please; quick to find fault. |
| FLAVORISTS | • flavorists n. Plural of flavorist. • FLAVORIST n. a person who creates flavourings for drinks, perfumes, etc., also FLAVOURIST. |
| FORESTAIRS | • forestairs n. Plural of forestair. • FORESTAIR n. (Scots) an outside stair at the front of a house. |
| FORMALISTS | • formalists n. Plural of formalist. • FORMALIST n. a person having exaggerated regard to rules or established usages. |
| FORSYTHIAS | • forsythias n. Plural of forsythia. • FORSYTHIA n. any shrub of the genus Forsythia, a popular garden plant producing clusters of yellow jasmine-like flowers in the spring. |
| GOATFISHES | • goatfishes n. Plural of goatfish. • GOATFISH n. a tropical fish inhabiting the Gulf of Mexico, allied to the surmullet. |
| LOANSHIFTS | • loanshifts n. Plural of loanshift. • LOANSHIFT n. the adaptation of a word from one language to another. |
| MANIFESTOS | • manifestos n. Plural of manifesto. • manifestos v. Third-person singular simple present indicative form of manifesto. • MANIFESTO n. a written statement declaring publicly the intentions, motives, or views of its issuer. |
| PROFASCIST | • profascist adj. In favour of fascism. • profascist n. A supporter of fascism. • PROFASCIST adj. supporting fascism. |
| SAINTFOINS | • saintfoins n. Plural of saintfoin. • SAINTFOIN n. (French) a leguminous plant, used as fodder, also SAINFOIN. |
| STAIRFOOTS | • stairfoots n. Plural of stairfoot. • STAIRFOOT n. the level place at the foot of the stairs. |
| SULFATIONS | • sulfations n. Plural of sulfation. • SULFATION n. the act of forming a sulfate, also SULPHATION. |
| TOADFISHES | • toadfishes n. Plural of toadfish. • TOADFISH n. a toadlike marine fish. |