| BREAKTHROUGHS | • breakthroughs n. Plural of breakthrough. • BREAKTHROUGH n. an offensive thrust that penetrates and carries beyond a defensive line in warfare. |
| CERAUNOGRAPHS | • ceraunographs n. Plural of ceraunograph. • CERAUNOGRAPH n. an instrument for recording thunderstorms by detecting the radio waves generated, also KERAUNOGRAPH. |
| DRAUGHTBOARDS | • draughtboards n. Plural of draughtboard. • DRAUGHTBOARD n. a board for the playing of draughts. |
| DRAUGHTPROOFS | • draughtproofs v. Third-person singular simple present indicative form of draughtproof. • DRAUGHTPROOF v. to make proof against draughts. |
| GROUNDSHARING | • groundsharing v. Present participle of groundshare. • GROUNDSHARE v. to share a sports stadium with another team. |
| HELIOGRAVURES | • heliogravures n. Plural of heliogravure. • HELIOGRAVURE n. photogravure. |
| KERAUNOGRAPHS | • keraunographs n. Plural of keraunograph. • KERAUNOGRAPH n. an instrument for detecting distant thunderstorms, also CERAUNOGRAPH. |
| PHOTOGRAVURES | • photogravures n. Plural of photogravure. • PHOTOGRAVURE n. printing from engraved plates photographically prepared. |
| REAUTHORISING | • REAUTHORISE v. to authorise again, also REAUTHORIZE. |
| SURROGATESHIP | • surrogateship n. The position or office of a surrogate. • SURROGATESHIP n. the office of surrogate. |
| THOROUGHFARES | • thoroughfares n. Plural of thoroughfare. • THOROUGHFARE n. a through road. |
| TURBOCHARGERS | • turbochargers n. Plural of turbocharger. • TURBOCHARGER n. a centrifugal blower driven by exhaust gas turbines and used to supercharge an engine. |
| URANOGRAPHERS | • uranographers n. Plural of uranographer. • URANOGRAPHER n. one who maps the constellations. |
| URANOGRAPHIES | • uranographies n. Plural of uranography. • URANOGRAPHY n. descriptive astronomy and mapping. |
| URANOGRAPHIST | • URANOGRAPHIST n. one who practises uranography, descriptive astronomy and mapping. |