| BIOSAFETY | • biosafety n. Protection from potential harm from biological agents, such as infectious microbes or modified genes. • BIOSAFETY n. safety with respect to the effects of biological research. |
| CONFESTLY | • confestly adv. Obsolete form of confessedly. • CONFEST adv. CONFESS, to admit or disclose. |
| COPYLEFTS | • copylefts n. Plural of copyleft. • copylefts v. Third-person singular simple present indicative form of copyleft. • COPYLEFT v. to publish (intellectual property) under a license that allows free use and modification. |
| FESTILOGY | • festilogy n. A treatise on church festivals. • FESTILOGY n. a treatise on ecclesiastical festivals, also FESTOLOGY. |
| FESTOLOGY | • festology n. A form of martyrology that lists the feast days. • FESTOLOGY n. a treatise on ecclesiastical festivals, also FESTILOGY. |
| FETOSCOPY | • fetoscopy n. An endoscopic procedure during pregnancy to allow access to the fetus, the amniotic cavity, the umbilical… • FETOSCOPY n. a procedure for viewing the fetus directly, within the uterus, also FOETOSCOPY. |
| FLYPOSTER | • flyposter n. One who illegally posts flyers or similar material in public places. • flyposter n. A flyer, poster, etc. that is illegally posted in a public place. • fly-poster n. A poster, especially for advertisement purposes, put up illegally. |
| FOGEYDOMS | • FOGEYDOM n. the world of fogies, also FOGYDOM. |
| FOGEYISMS | • fogeyisms n. Plural of fogeyism. • FOGEYISM n. an outlook like a fogy, also FOGYISM. |
| FOREPLAYS | • foreplays v. Third-person singular simple present indicative form of foreplay. • FOREPLAY n. erotic stimulation preceding sexual intercourse. |
| FORESTAYS | • forestays n. Plural of forestay. • FORESTAY n. a rope or wire used to support a foremast. |
| FOREYARDS | • foreyards n. Plural of foreyard. • FOREYARD n. the lowest yard on a foremast. |
| FULSOMELY | • fulsomely adv. In a fulsome manner. • FULSOME adv. cloying. |
| LIFEBUOYS | • lifebuoys n. Plural of lifebuoy. • life-buoys n. Plural of life-buoy. • life␣buoys n. Plural of life buoy. |
| OVERFUSSY | • overfussy adj. Excessively fussy. • OVERFUSSY adj. too fussy. |
| PERSONIFY | • personify v. (Transitive) To be an example of; to have all the attributes of. • personify v. (Transitive) To create a representation of (an abstract quality) in the form of a character or persona. • PERSONIFY v. to be the embodiment of. |
| PROFUSELY | • profusely adv. In great quantity or abundance; in a profuse manner. • PROFUSE adv. pouring forth generously, also PROFUSIVE. |
| RYEFLOURS | • RYEFLOUR n. a pasture and fodder type of grass, also RAYGRASS, RYEGRASS. |
| SOLEMNIFY | • solemnify v. (Transitive) To make solemn. • SOLEMNIFY v. to make solemn. |