| AFTERMASTS | • aftermasts n. Plural of aftermast. • AFTERMAST n. the mast nearest the stern. |
| FARMSTEADS | • farmsteads n. Plural of farmstead. • FARMSTEAD n. a farmhouse with buildings belonging to it. |
| FILMSTRIPS | • filmstrips n. Plural of filmstrip. • film␣strips n. Plural of film strip. • FILMSTRIP n. a film consisting of a series of stills to be shown separately and consecutively. |
| FIRESTORMS | • firestorms n. Plural of firestorm. • fire␣storms n. Plural of fire storm. • FIRESTORM n. a huge blaze (especially a result of heavy bombing) which fans its own flames by creating its own draught. |
| FORMALISTS | • formalists n. Plural of formalist. • FORMALIST n. a person having exaggerated regard to rules or established usages. |
| FORMULISTS | • formulists n. Plural of formulist. • FORMULIST n. one who depends excessively on formulae. |
| FORTISSIMI | • fortissimi n. Plural of fortissimo. • FORTISSIMO n. a very loud passage in music. |
| FORTISSIMO | • fortissimo adv. (Music) Indicating that the piece is played very loud. • fortissimo n. (Music) The dynamic sign indicating that the piece should be played fortissimo. Abbreviation: ff. • FORTISSIMO adj. (Italian) very loud; with the utmost strength or loudness. |
| FREMITUSES | • FREMITUS n. (Latin) a vibration capable of being felt. |
| MUTESSARIF | • mutessarif n. Alternative spelling of mutasarrif. • MUTESSARIF n. (Turkish) the head of a Turkish sanjak, a district or a subdivision of a vilayet. |
| MYSTIFIERS | • mystifiers n. Plural of mystifier. • MYSTIFIER n. one who mystifies. |
| REFORMISTS | • reformists n. Plural of reformist. • REFORMIST n. a reformer. |
| STAFFROOMS | • staffrooms n. Plural of staffroom. • STAFFROOM n. a room in a school set aside for the teaching staff. |
| STYROFOAMS | • styrofoams n. Plural of styrofoam. • STYROFOAM n. (tradename) a type of expanded plastic made from polystyrene. |
| TRANSFORMS | • transforms v. Third-person singular simple present indicative form of transform. • transforms n. Plural of transform. • TRANSFORM v. to change into another form. |