| JACKANAPESES | • jackanapeses n. Plural of jackanapes. • jack-a-napeses n. Plural of jack-a-napes. • JACKANAPES n. an impudent child; a conceited fellow. |
| JACKASSERIES | • jackasseries n. Plural of jackassery. • JACKASSERY n. being a jackass. |
| JACKHAMMERED | • jackhammered v. Simple past tense and past participle of jackhammer. • JACKHAMMER v. to hammer with a jackhammer. |
| JACKLIGHTING | • jacklighting n. (Hunting, US, Canada) The action of the verb to jacklight; the act of illuminating an animal for the… • jacklighting v. Present participle of jacklight. • JACKLIGHT v. to fish with a jacklight. |
| JACTITATIONS | • jactitations n. Plural of jactitation. • JACTITATION n. restless tossing in bed, characteristic of severe fevers and certain mental disorders, also JACTATION. |
| JADISHNESSES | • JADISHNESS n. the state of being jaded. |
| JAGGEDNESSES | • jaggednesses n. Plural of jaggedness. • JAGGEDNESS n. the state of being jagged. |
| JAILBREAKERS | • jailbreakers n. Plural of jailbreaker. • JAILBREAKER n. one who escapes from jail. |
| JAILBREAKING | • jailbreaking v. Present participle of jailbreak. • JAILBREAK v. to free from jail, also GAOLBREAK. |
| JALOALLOFANE | • JALOALLOFANE n. a crystalline mineral which contains potassium and belongs to the feldspar group, aka hyalophane. |
| JANITORSHIPS | • janitorships n. Plural of janitorship. • JANITORSHIP n. the office of janitor. |
| JAPONAISERIE | • japonaiserie n. (Art) Art objects made in the Japanese style. • JAPONAISERIE n. (French) art or craft in the Japanese style. |
| JAUNTINESSES | • jauntinesses n. Plural of jauntiness. • JAUNTINESS n. the state of being jaunty. |