| AEROMOTORS | • aeromotors n. Plural of aeromotor. • AEROMOTOR n. an engine for aircraft. |
| BOARDROOMS | • boardrooms n. Plural of boardroom. • board-rooms n. Plural of board-room. • board␣rooms n. Plural of board room. |
| BROMOFORMS | • bromoforms n. Plural of bromoform. • BROMOFORM n. a bromine compound analogous to chloroform. |
| BROOMCORNS | • broomcorns n. Plural of broomcorn. • broom␣corns n. Plural of broom corn. • BROOMCORN n. a kind of millet of whose stalks brooms are made. |
| COURTROOMS | • courtrooms n. Plural of courtroom. • court␣rooms n. Plural of court room. • COURTROOM n. a room in a courthouse in which lawsuits and criminal cases are heard. |
| MOTORSPORT | • motorsport n. Auto racing. • motorsport n. Any sport involving automobiles (motor cars) other than racing; e.g. time trials. |
| PROOFROOMS | • PROOFROOM n. a room where proofs are set up. |
| SERVOMOTOR | • servomotor n. An electric motor in a servomechanism, especially one which incorporates feedback so it accurately positions… • SERVOMOTOR n. a motor using a servomechanism. |
| STOREROOMS | • storerooms n. Plural of storeroom. • STOREROOM n. a room in which things are stored. |
| STORMPROOF | • stormproof adj. Capable of resisting a storm. • storm-proof adj. Alternative form of stormproof. • STORMPROOF adj. proof against bad weather. |
| STRONGROOM | • strongroom n. A strongly built room or vault where valuables may be safely stored. • strong␣room n. Alternative spelling of strongroom. • STRONGROOM n. a room for the keeping of valuables etc. |