| AUFS | • aufs n. Plural of auf. • AUF n. (obsolete) an elf's child. |
| FEUS | • feus n. Plural of feu. • feus v. Third-person singular simple present indicative form of feu. • FEU v. (Scots) to grant land to under Scottish feudal law. |
| FLUS | • flus n. Plural of flu. • FLU n. a virus disease. |
| FOUS | • FOU n. a bushel. |
| FUBS | • fubs v. Third-person singular simple present indicative form of fub. • fubs n. Plural of fub. • FUB v. to cheat, also FOB. |
| FUDS | • fuds n. Plural of fud. • FUD n. a rabbit's or hare's tail. |
| FUGS | • fugs n. Plural of fug. • fugs v. Third-person singular simple present indicative form of fug. • FUG v. to make hot, stuffy and close. |
| FUMS | • fums v. Third-person singular simple present indicative form of fum. • FUM n. (Chinese) the fabled Chinese phoenix, also FUNG. |
| FUNS | • funs v. Third-person singular simple present indicative form of fun. • FUN v. to act playfully. |
| FURS | • furs n. Plural of fur. • furs v. Third-person singular simple present indicative form of fur. • Furs n. Plural of Fur. |
| FUSC | • FUSC adj. dusky brown, also FUSCOUS. |
| FUSE | • fuse n. A cord that, when lit, conveys the fire to some explosive device. • fuse n. (Manufacturing, mining, military) The mechanism that ignites the charge in an explosive device; a detonator. • fuse n. (Figurative) A tendency to lose one’s temper. |
| FUSK | • FUSK v. to obtain data from (a website) by using a fusker. |
| FUSS | • fuss n. (Countable or uncountable) Excessive activity, worry, bother, or talk about something. • fuss n. A complaint or noise; a scene. • fuss n. An exhibition of affection or admiration. |
| FUST | • fust n. A strong musty smell; mustiness. • fust n. (Architecture) The shaft (main body) of a column. • fust v. (Intransitive, obsolete) To turn mouldy, to decay. |
| SURF | • surf n. Waves that break on an ocean shoreline. • surf n. An instance or session of riding a surfboard in the surf. • surf n. A dance popular in the 1960s in which the movements of a surfboard rider are mimicked. |
| UFOS | • ufos n. Plural of ufo. • UFOs n. Plural of UFO. • UFO n. an unidentified flying object. |