| JACKSMELT | • jacksmelt n. Atherinopsis californiensis, an edible neotropical silverside native to the Pacific coast of North America. • JACKSMELT n. a large fish of the Pacific coast of North America. |
| JACKSMITH | • jacksmith n. A smith who makes jacks. • JACKSMITH n. a smith who makes jacks. |
| JAMBUSTER | • jambuster n. (Manitoba, Northwestern Ontario) A doughnut filled with jam. • JAMBUSTER n. (Canadian) a jelly-filled doughnut. |
| JASMONATE | • jasmonate n. (Organic chemistry) Any of several esters of jasmonic acid that act as plant hormones; they are the… • JASMONATE n. any of several organic compounds that occur in plants and are thought to control processes such as growth and fruit ripening and to aid the plant's defences against disease and insect attack. |
| JETSTREAM | • jetstream n. Alternative spelling of jet stream. • jet␣stream n. (Meteorology) any of the high-speed, high-altitude air currents that circle the Earth in a westerly direction. • JETSTREAM n. a narrow belt of high-altitude winds moving east at high speeds and having an important effect on frontogenesis. |
| JOKESMITH | • jokesmith n. (Humorous) A person who devises jokes. • JOKESMITH n. (archaic) a composer of jokes. |
| JUDGMENTS | • judgments n. Plural of judgment. • JUDGMENT n. an opinion formed. |
| JUMBLIEST | • JUMBLY adj. in a jumble. |
| JUMPSHOTS | • jumpshots n. Plural of jumpshot. • jump␣shots n. Plural of jump shot. • JUMPSHOT n. a type of shot in basketball. |
| JUMPSUITS | • jumpsuits n. Plural of jumpsuit. • JUMPSUIT n. a one-piece garment for either sex, combining trousers and jacket or blouse. |
| JURYMASTS | • jurymasts n. Plural of jurymast. • jury␣masts n. Plural of jury mast. • JURYMAST n. a temporary mast. |
| KOMITAJIS | • komitajis n. Plural of komitaji. • KOMITAJI n. (Turkish) a member of the Bulgarian Revolutionary Committee in Macedonia; any Balkan guerilla, also COMITADJI. |
| MAJESTIES | • majesties n. Plural of majesty. • MAJESTY n. regal dignity. |
| MICROJETS | • microjets n. Plural of microjet. • MICROJET n. a light jet aircraft. |
| MISADJUST | • misadjust v. (Transitive) To adjust wrongly or unsuitably. • MISADJUST v. to adjust wrongly; to throw out of adjustment. |
| SCRAMJETS | • scramjets n. Plural of scramjet. • SCRAMJET n. a type of aircraft engine. |