| DUREFUL | • dureful adj. (Obsolete) lasting. • DUREFUL adj. (Spenser) enduring, lasting. |
| FRUSTUM | • frustum n. A cone or pyramid whose tip has been truncated by a plane parallel to its base. • frustum n. A portion of a sphere, or in general any solid, delimited by two parallel planes. • FRUSTUM n. (Latin) a cone with its top cut of. |
| FULCRUM | • fulcrum n. (Mechanics) The support about which a lever pivots. • fulcrum n. (Figurative) A crux or pivot; a central point. • Fulcrum prop.n. (Military) NATO code name for the Soviet MiG-29 aircraft. |
| FULGOUR | • fulgour n. Obsolete form of fulgor. • FULGOUR n. splendour, also FULGOR. |
| FURCULA | • furcula n. (Anatomy) A forked process or structure, generally two-pronged. • furcula n. (Ornithology) The forked bone formed by the fusion of the clavicles in birds, the wishbone or merrythought. • furcula n. (Entomology) The (two-pronged) forked, somewhat tail-like organ held bent forward and secured by a catch… |
| FUREURS | • FUREUR n. (French) an extravagant admiration. |
| FURFURS | • FURFUR n. (Latin) dandruff, also FURFAIR. |
| FURIOUS | • furious adj. Feeling great anger; raging; violent. • furious adj. Rushing with impetuosity; moving with violence. • FURIOUS adj. extremely angry. |
| FUTURAL | • futural adj. Of or relating to the future. • futural adj. (Grammar) Having a future tense. • FUTURAL adj. of the future. |
| FUTURES | • futures n. Plural of future. • futures n. Short for futures contract. • FUTURE n. the time yet to come. |
| HURTFUL | • hurtful adj. Tending to impair or damage; injurious; occasioning loss or injury. • hurtful adj. Tending to hurt someone’s feelings; insulting. • HURTFUL adj. causing injury. |
| RUTHFUL | • ruthful adj. Full of sorrow; sorrowful; woeful; rueful. • ruthful adj. Causing pity; piteous. • ruthful adj. Full of ruth or pity; merciful; compassionate. |
| SULFURS | • sulfurs n. Plural of sulfur. • sulfurs v. Third-person singular simple present indicative form of sulfur. • SULFUR v. to treat with sulfur, also SULPHUR. |
| SULFURY | • sulfury adj. Having a colour similar to that of sulfur. • sulfury adj. Having a smell similar to that of sulfur compounds. • SULFURY adj. resembling, or partaking of the nature of, sulphur, also SULPHURY. |
| UNFURLS | • unfurls v. Third-person singular simple present indicative form of unfurl. • UNFURL v. to unroll. |
| UNRUFFE | • UNRUFFE adj. (Shakespeare) beardless, also UNROUGH. |
| UNTURFS | • unturfs v. Third-person singular simple present indicative form of unturf. • UNTURF v. to strip of turf. |
| UPFURLS | • upfurls v. Third-person singular simple present indicative form of upfurl. • UPFURL v. to roll up. |
| URNFULS | • urnfuls n. Plural of urnful. • URNFUL n. as much as an urn can hold. |