| JACKALOPES | • jackalopes n. Plural of jackalope. • JACKALOPE n. a mythical animal that is reported chiefly from the western US and is reputed to be the size of a small deer and to have the body of a jackrabbit and the horns of an antelope. |
| JACKSTONES | • jackstones n. Plural of jackstone. • JACKSTONE n. a piece used in the game of jacks. |
| JOBSEEKERS | • jobseekers n. Plural of jobseeker. • JOBSEEKER n. one engaged in seeking employment. |
| JOCKEYISMS | • jockeyisms n. Plural of jockeyism. • JOCKEYISM n. the practice of jockeys. |
| JOCKEYSHIP | • jockeyship n. The art, character, or position, of a jockey; the personality of a jockey. • JOCKEYSHIP n. the art or practice of a jockey. |
| JOCKTELEGS | • jocktelegs n. Plural of jockteleg. • JOCKTELEG n. (Scots) a large clasp knife. |
| JOKESMITHS | • jokesmiths n. Plural of jokesmith. • JOKESMITH n. (archaic) a composer of jokes. |
| JOKINESSES | • JOKINESS n. the state of being amusing. |
| JONNYCAKES | • jonnycakes n. Plural of jonnycake. • JONNYCAKE n. a kind of bread made of the meal of maize (Indian corn), mixed with water or milk, etc., and baked, also JOHNNYCAKE. |
| JUNKERDOMS | • JUNKERDOM n. the office of junker. |
| KABELJOUWS | • kabeljouws n. Plural of kabeljouw. • KABELJOUW n. (South African) a large South African fish, also KABELJOU. |
| KILOJOULES | • kilojoules n. Plural of kilojoule. • KILOJOULE n. a unit of energy, 1000 joules. |
| OUTJOCKEYS | • outjockeys v. Third-person singular simple present indicative form of outjockey. • OUTJOCKEY v. to surpass in jockeying. |
| SJAMBOKKED | • sjambokked v. Simple past tense and past participle of sjambok. • SJAMBOK v. (South African) to beat with a rhinoceros-hide whip, also JAMBOK. |
| SKIKJORERS | • SKIKJORER n. one who engages in the sport of skijoring, also SKIJORER, SKIORER. |
| SMOKEJACKS | • smokejacks n. Plural of smokejack. • smoke␣jacks n. Plural of smoke jack. • SMOKEJACK n. a contrivance for turning a spit by means of a fly or wheel moved by the current of ascending air in a chimney. |
| SUPERJOCKS | • superjocks n. Plural of superjock. • SUPERJOCK n. a very good athlete. |