| COUNTERSINKING | • countersinking v. Present participle of countersink. • COUNTERSINK v. to make a countersink on (a hole). |
| FOREKNOWLEDGES | • foreknowledges n. Plural of foreknowledge. • FOREKNOWLEDGE n. knowledge in advance of the event. |
| GROUNDBREAKERS | • groundbreakers n. Plural of groundbreaker. • GROUNDBREAKER n. one that innovates. |
| GROUNDSKEEPERS | • groundskeepers n. Plural of groundskeeper. • GROUNDSKEEPER n. a person who cares for the grounds of a usually large property (as a sports field). |
| HOUSEBREAKINGS | • housebreakings n. Plural of housebreaking. • HOUSEBREAKING n. the act of breaking into a house for the purpose of stealing. |
| HYDROCRACKINGS | • hydrocrackings n. Plural of hydrocracking. • HYDROCRACKING n. the process of cracking hydrocarbons in the presence of hydrogen. |
| KINEMATOGRAPHS | • kinematographs n. Plural of kinematograph. • KINEMATOGRAPH n. an apparatus for filming, printing and projecting a series of instantaneous photographs so as to give a moving representation of a scene, also CINEMATOGRAPH. |
| KREMLINOLOGIES | • KREMLINOLOGY n. the study of the policies and practices of the former Soviet government. |
| KREMLINOLOGIST | • Kremlinologist n. A person involved in Kremlinology. • KREMLINOLOGIST n. one who studies kremlinology. |
| MALLEMAROKINGS | • MALLEMAROKING n. the carousing of seamen in icebound ships, also MOLLIE. |
| MEGAKARYOCYTES | • megakaryocytes n. Plural of megakaryocyte. • MEGAKARYOCYTE n. a large cell with a lobulated nucleus, found esp. in the bone marrow, the source of blood platelets. |
| MICROCRACKINGS | • MICROCRACKING n. microscopic cracking. |
| SKATEBOARDINGS | • SKATEBOARDING n. the sport of riding or performing stunts on a skateboard. |
| STOCKBREEDINGS | • STOCKBREEDING n. the breeding of stock. |
| STOCKBROKERAGE | • stockbrokerage n. Stockbroking. • STOCKBROKERAGE n. the activities of a stockbroker. |
| TROUBLEMAKINGS | • troublemakings n. Plural of troublemaking. • TROUBLEMAKING n. the act of making trouble. |