| ARFS | • ARF n. a barking sound. |
| FARS | • fars n. Plural of far. • Fars prop.n. A province of Iran. • far's cont. Contraction of far as. |
| FIRS | • firs n. Plural of fir. • FIRs n. Plural of FIR. • FIR n. an evergreen tree. |
| FRAS | • Fras n. Plural of Fra. • FRAs n. Plural of FRA. • FRA n. (Italian) brother. |
| FRIS | • Fris n. Plural of Fri. • FRIS n. (Hungarian) the fast section of a Hungarian dance, also FRISKA. |
| FROS | • fros n. Plural of fro. • 'fros n. Plural of ’fro. • FRO n. an African hairstyle, also AFRO. |
| FURS | • furs n. Plural of fur. • furs v. Third-person singular simple present indicative form of fur. • Furs n. Plural of Fur. |
| ORFS | • orfs n. Plural of orf. • Orfs prop.n. Plural of Orf. • ORFs n. Plural of ORF. |
| REFS | • refs n. (British police slang) A scheduled meal break during a shift, short for refreshments. • refs n. Plural of ref. • refs v. Third-person singular simple present indicative form of ref. |
| 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. |
| SERF | • serf n. A partially free peasant of a low hereditary class, attached like a slave to the land owned by a feudal… • serf n. A similar agricultural labourer in 18th and 19th century Europe. • serf n. (Strategy games) A worker unit. |
| 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. |