| AIRPROOFED | • airproofed adj. That has been made airtight. • AIRPROOF v. to make impermeable to air. |
| FLAMEPROOF | • flameproof adj. Resistant to catching fire. • flameproof v. (Transitive) To make flameproof. • FLAMEPROOF adj. resistant to burning. |
| FLAPDOODLE | • flapdoodle n. (Uncountable) Nonsense. • flapdoodle n. (Countable) Thingamabob. • flapdoodle n. (Countable) A speaker or writer of nonsense. |
| FOOTPLATES | • footplates n. Plural of footplate. • FOOTPLATE n. a platform for a footplateman, an assistant to a train driver. |
| FORETOPMAN | • foretopman n. (Nautical) A sailor who controls the masts in the foretop. • FORETOPMAN n. a sailor who works on the platform at the head of the foremast. |
| FORTEPIANO | • fortepiano n. A keyboard instrument; the smaller, quieter precursor to the pianoforte. • FORTEPIANO adj. loud with immediate relapse into softness. • FORTEPIANO n. the eighteenth century name for an early type of piano; a fortepiano note. |
| PERFORATOR | • perforator n. A tool or machine that makes holes, or perforates, materials such as paper and card. • perforator n. A machine that can bore a tunnel underground. • perforator n. (Anatomy) A perforating artery or vein. |
| PIANOFORTE | • pianoforte n. (Music, dated) A piano. • piano-forte n. Alternative form of pianoforte. • PIANOFORTE n. (Italian) a large keyboard musical instrument. |
| PROOFREADS | • proofreads v. Third-person singular simple present indicative form of proofread. • proof-reads v. Third-person singular simple present indicative form of proof-read. • PROOFREAD v. to read checking for mistakes. |
| ROOFSCAPES | • roofscapes n. Plural of roofscape. • ROOFSCAPE n. a view of roofs. |
| SPADEFOOTS | • spadefoots n. Plural of spadefoot. • spade-foots n. Plural of spade-foot. • spade␣foots n. Plural of spade foot. |
| SWEATPROOF | • sweatproof adj. Resistant to sweat. |
| WATERPROOF | • waterproof adj. Resistant to the effects of water. • waterproof adj. Made of or covered with material that doesn’t allow water in. • waterproof adj. (Figurative) Incapable of failing; unassailable. |