| ANTIQUARIES | • antiquaries n. Plural of antiquary. • ANTIQUARY n. a student or collector of antiquities or antiques. |
| AQUARELLIST | • aquarellist n. (Art) An artist who paints aquarelles. • AQUARELLIST n. an artist painting aquarelles. |
| AQUATINTERS | • aquatinters n. Plural of aquatinter. • AQUATINTER n. one who works with aquatints. |
| BIQUADRATES | • biquadrates n. Plural of biquadrate. • BIQUADRATE n. the fourth power. |
| EARTHQUAKES | • earthquakes n. Plural of earthquake. • EARTHQUAKE n. a quaking or shaking of the earth. |
| EQUATORIALS | • equatorials n. Plural of equatorial. • EQUATORIAL n. an equatorial telescope. |
| EQUIPARATES | • EQUIPARATE v. (obsolete) to regard or treat as equal. |
| MARQUESSATE | • marquessate n. The territory of a marquess, margrave or person of comparable rank. • MARQUESSATE n. the rank of marquess. |
| MARQUISATES | • marquisates n. Plural of marquisate. • MARQUISATE n. the rank of a marquis. |
| PENTAQUARKS | • pentaquarks n. Plural of pentaquark. • PENTAQUARK n. a hypothetical subatomic particle consisting of a group of five quarks (as compared to the usual three quarks). |
| QUADRATURES | • quadratures n. Plural of quadrature. • QUADRATURE n. the finding of a square having the same area as some given curvilinear figure. |
| QUADRATUSES | • QUADRATUS n. the name of several quadrangular muscles. |
| QUAESTORIAL | • quaestorial adj. Of or relating to a quaestor. • QUAESTORIAL adj. relating to the office of quaestor, also QUESTORIAL. |
| QUARANTINES | • quarantines n. Plural of quarantine. • QUARANTINE v. to detain in or exclude by quarantine. |
| QUARTERAGES | • quarterages n. Plural of quarterage. • QUARTERAGE n. a quarterly allowance. |
| QUARTERSAWN | • quartersawn v. Past participle of quartersaw. • QUARTERSAW v. to saw (timber) into quarters along two diameters of a log at right angles to each other. |
| QUARTERSAWS | • quartersaws v. Third-person singular simple present indicative form of quartersaw. • quarter-saws v. Third-person singular simple present indicative form of quarter-saw. • quarter␣saws v. Third-person singular simple present indicative form of quarter saw. |
| REACQUAINTS | • reacquaints v. Third-person singular simple present indicative form of reacquaint. • REACQUAINT v. to acquaint again. |
| WATERQUAKES | • waterquakes n. Plural of waterquake. • WATERQUAKE n. a seismic disturbance affecting the sea. |