| AEROFOILS | • aerofoils n. Plural of aerofoil. • AEROFOIL n. a structure which gives rise to a lift force when moving through the air, e.g. a wing of an aircraft, also AIRFOIL. |
| BEFOOLING | • befooling v. Present participle of befool. • BEFOOL v. to fool; to delude or lead into error. |
| BIOFOULER | • biofouler n. Any material that causes biofouling. • BIOFOULER n. an animal that obstructs or corrupts the environment. |
| FELONIOUS | • felonious adj. Of, relating to, being, or having the quality of felony. • felonious adj. (Law) Done with intent to commit a crime. • FELONIOUS adj. like a felon, wicked. |
| FIELDBOOT | • fieldboot n. A kind of riding boot with lacing at the vamp, traditionally worn by officers ranked "field grade" or higher. • field␣boot n. A type of walking boot. • FIELDBOOT n. a knee-length boot. |
| FIREFLOOD | • FIREFLOOD n. a method of extracting oil from a well by burning some of the oil to increase the flow. |
| FLOODTIDE | • floodtide n. Alternative form of flood tide. • flood-tide n. Alternative form of flood tide. • flood␣tide n. The period between low tide and the next high tide in which the sea is rising. |
| FOILBORNE | • FOILBORNE adj. of a craft, travelling along the water on hydrofoils. |
| FOLIOLATE | • foliolate adj. Of or pertaining to leaflets of a plant. • FOLIOLATE adj. composed of or relating to leaflets, also FOLIOLOSE. |
| FOLIOLOSE | • foliolose adj. (Botany) Bearing folioles. • FOLIOLOSE adj. composed of or relating to leaflets, also FOLIOLATE. |
| FOOLERIES | • fooleries n. Plural of foolery. • FOOLERY n. foolish behaviour or speech. |
| FOOLISHER | • foolisher adj. (Nonstandard or humorous) comparative form of foolish: more foolish. • FOOLISH adj. lacking good sense or judgement. |
| LIFEBLOOD | • lifeblood n. Blood that is needed for continued life; blood regarded as the seat of life. • lifeblood n. (Figuratively) That which is required for continued existence or function. • LIFEBLOOD n. the blood necessary to life. |
| ROOFLINES | • rooflines n. Plural of roofline. • ROOFLINE n. the profile of a roof. |
| SHOOFLIES | • shooflies n. Plural of shoofly. • SHOOFLY n. a child's rocker with a seat between flat sides shaped like a bird or animal. |
| SOLFEGGIO | • solfeggio n. (Music) Synonym of solfège. • SOLFEGGIO n. a singing exercise using the syllable do, re, mi, fa, so, la, ti, also SOLFEGE. |
| SOLFERINO | • solferino n. A brilliant purple-red dye derived from aniline. • solferino n. The purple-red colour of this dye. • SOLFERINO n. (Italian) a moderate purplish-red. |
| UFOLOGIES | • ufologies n. Plural of ufology. • UFOLOGY n. the study of unidentified flying objects. |