| FORJESKIT | • FORJESKIT adj. (Scots) tired out, also DISJASKIT, FORJASKIT. |
| HIJACKERS | • hijackers n. Plural of hijacker. • HIJACKER n. one that hijacks, also HIGHJACKER. |
| JACKEROOS | • jackeroos n. Plural of jackeroo. • JACKEROO n. (Australian) a newcomer gaining experience at a sheep-station. |
| JACKSCREW | • jackscrew n. A jack (mechanical lifting device) which is operated by turning a leadscrew. • jackscrew n. A leadscrew; a screw used to translate rotational into linear motion. • jack␣screw n. Alternative form of jackscrew. |
| JERKINESS | • jerkiness n. The state or quality of being jerky. • JERKINESS n. the state of being jerky. |
| JIRKINETS | • jirkinets n. Plural of jirkinet. • JIRKINET n. (Scots) a woman's jacket or bodice. |
| JOBSEEKER | • jobseeker n. A person seeking employment. • jobseeker n. (Britain) An unemployed person who needs to prove he/she is looking for work in order to obtain government benefits. • JOBSEEKER n. one engaged in seeking employment. |
| JOKESTERS | • jokesters n. Plural of jokester. • JOKESTER n. a practical joker. |
| JOOKERIES | • JOOKERY n. (Scots) trickery, roguery, also JOUKERY. |
| JOUKERIES | • JOUKERY n. (Scots) trickery, also JOOKERY. |
| JUNKETERS | • junketers n. Plural of junketer. • JUNKETER n. one that junkets, also JUNKETTER. |
| REJACKETS | • rejackets v. Third-person singular simple present indicative form of rejacket. • REJACKET v. to clothe in a jacket once more. |
| SKIJORERS | • skijorers n. Plural of skijorer. • SKIJORER n. one who does skijoring, also SKIKJORER, SKIORER. |
| SKIJUMPER | • ski␣jumper n. Someone who competes in ski jumping. • SKIJUMPER n. one who engages in the sport of ski-jumping. |
| SKIKJORER | • SKIKJORER n. one who engages in the sport of skijoring, also SKIJORER, SKIORER. |
| SKYJACKER | • skyjacker n. A person who commits skyjacking, who skyjacks. • SKYJACKER n. one who skyjacks, hijacks an aeroplane. |
| SUPERJOCK | • superjock n. An athletic macho man. • SUPERJOCK n. a very good athlete. |