| DIFS | • difs n. Plural of dif. • DIF n. (colloquial) difference, also DIFF. |
| FEIS | • feis n. (Ireland) An Irish festival, usually including folk music, dancing, and sports. • feis n. (Ireland) An Irish gathering at which new laws were decreed, as well as folk music, dancing, and sports. • Feis prop.n. Plural of Fei. |
| FIBS | • fibs n. Plural of fib. • FIBs n. Plural of FIB. • FIB v. to tell a trivial lie. |
| FIDS | • fids n. Plural of fid. • FIDS n. Initialism of flight information display system. A key system of every airport for displaying actual… • FID n. a conical pin of hard wood. |
| FIGS | • figs n. Plural of fig. • FIGS prop.n. Initialism of French, Italian, German, Spanish. • figs. n. (Law) Abbreviation of figures. |
| FILS | • fils adj. Used after a proper name that is common to a father and his son to indicate that the son is being referred… • fils n. (Rare) The son referred to in the manner of the adjective above. • fils n. (Numismatics) Subdivision of currency used in many Arab countries. |
| FINS | • fins n. Plural of fin. • fins v. Third-person singular simple present indicative form of fin. • FINs n. Plural of FIN. |
| FIRS | • firs n. Plural of fir. • FIRs n. Plural of FIR. • FIR n. an evergreen tree. |
| FISC | • fisc n. (Ancient Rome) The public treasury of Rome. • fisc n. Any state treasury or exchequer. • FISC n. (obsolete) the state treasury; the public revenue, also FISK. |
| FISH | • fish n. (Countable) A cold-blooded vertebrate animal that lives in water, moving with the help of fins and breathing… • fish n. (Archaic or loosely) Any animal (or any vertebrate) that lives exclusively in water. • fish n. (Newfoundland) Cod; codfish. |
| FISK | • fisk v. (Obsolete) To run about; to frisk; to whisk. • fisk v. To rebut an argument line by line, especially on the Internet. • Fisk prop.n. A surname. |
| FIST | • fist n. A hand with the fingers clenched or curled inward. • fist n. (Printing) The pointing hand symbol ☞. • fist n. (Amateur radio) The characteristic signaling rhythm of an individual telegraph or CW operator when sending Morse code. |
| FITS | • fits n. Plural of fit. • fits v. Third-person singular simple present indicative form of fit. • FiTs n. Plural of FiT. |
| FRIS | • Fris n. Plural of Fri. • FRIS n. (Hungarian) the fast section of a Hungarian dance, also FRISKA. |
| GIFS | • gifs n. Plural of gif. • Gifs n. Plural of Gif. • GIFs v. Third-person singular simple present indicative form of GIF. |
| KIFS | • KIF n. (Arabic) a state of dreamy intoxication induced by e.g. cannabis, also KAIF, KEEF, KEF, KIEF. |
| RIFS | • rifs v. Third-person singular simple present indicative form of rif. • RIFs n. Plural of RIF. • RIFs v. Third-person singular simple present indicative form of RIF. |
| SEIF | • seif n. A sand dune that elongates parallel to the prevailing wind. • Seif prop.n. A surname. • SEIF n. (Arabic) a long sand-dune lying parallel to the direction of the wind that forms it. |
| SIFT | • sift v. To sieve or strain (something). • sift v. To separate or scatter (things) as if by sieving. • sift v. To examine (something) carefully. |
| SPIF | • SPIF n. a postage stamp perforated with the initials of a firm to avoid theft by employees. |