| JIHADEEN | • JIHADEEN n. Islamic freedom fighters, also JEHADEEN. |
| MIJNHEER | • mijnheer n. Alternative form of mynheer. • MIJNHEER n. (Dutch) the Dutch equivalent of Mr. or Sir; hence, a Dutchman, also MENEER, MYNHEER. |
| JEWELFISH | • jewelfish n. Any fish in the genus Hemichromis, native to Africa. • JEWELFISH n. a brightly-coloured African cichlid. |
| JEWFISHES | • jewfishes n. Plural of jewfish. • JEWFISH n. a large marine fish of Florida and the Gulf of Mexico. |
| JUICEHEAD | • juicehead n. (Slang, dated) An alcoholic. • juicehead n. (Slang) A bodybuilder that uses, or appears to use, steroids and is of poor intellect or by extension any large male. • juice-head n. Alternative form of juicehead. |
| MIJNHEERS | • mijnheers n. Plural of mijnheer. • MIJNHEER n. (Dutch) the Dutch equivalent of Mr. or Sir; hence, a Dutchman, also MENEER, MYNHEER. |
| JAGGHERIES | • jaggheries n. Plural of jagghery. • JAGGHERY n. (Hindi) a coarse, dark sugar, also JAGGARY, JAGGERY, JAGRA. |
| JERKINHEAD | • jerkinhead n. (Architecture) The hipped part of a roof which is hipped only for a part of its height, leaving a truncated gable. • JERKINHEAD n. a truncated gable with a lipped roof. |
| JUICEHEADS | • juiceheads n. Plural of juicehead. • juice-heads n. Plural of juice-head. • juice␣heads n. Plural of juice head. |
| MUJAHIDEEN | • mujahideen n. Plural of mujahid. • MUJAHIDEEN n. (Arabic) Islamic fundamentalist freedom fighters, also MOJAHEDIN, MUJAHEDDIN, MUJAHEDEEN, MUJAHEDIN, MUJAHIDIN. |
| JELLYFISHES | • jellyfishes n. Plural of jellyfish. • JELLYFISH n. a marine coelenterate with jellylike body. |
| JERKINHEADS | • jerkinheads n. Plural of jerkinhead. • JERKINHEAD n. a truncated gable with a lipped roof. |
| JEWELFISHES | • jewelfishes n. Plural of jewelfish. • JEWELFISH n. a brightly-coloured African cichlid. |
| JOSEPHINITE | • josephinite n. (Mineralogy) awaruite. • JOSEPHINITE n. a mineral found only at Jospehine Creek in Oregon. |
| JADISHNESSES | • JADISHNESS n. the state of being jaded. |
| JOSEPHINITES | • JOSEPHINITE n. a mineral found only at Jospehine Creek in Oregon. |
| SERJEANTSHIP | • serjeantship n. Obsolete form of sergeantship. • SERJEANTSHIP n. the office of serjeant. |
| TECHNOJUNKIE | • technojunkie n. (Informal) One who has an addiction to computer technology. • TECHNOJUNKIE n. someone who is obsessed with technology. |
| SERJEANTSHIPS | • serjeantships n. Plural of serjeantship. • SERJEANTSHIP n. the office of serjeant. |
| TECHNOJUNKIES | • technojunkies n. Plural of technojunkie. • TECHNOJUNKIE n. someone who is obsessed with technology. |