| DOORJAMB | • doorjamb n. Either of the upright posts on either side of a door, which together support a lintel. • DOORJAMB n. one of the two vertical members forming the sides of a doorframe, aka doorpost. |
| JAMBOREE | • jamboree n. A boisterous or lavish celebration or party. • jamboree n. (Dated, slang) A frolic or spree. • jamboree n. A large rally of Scouts or Guides. |
| JANIFORM | • janiform adj. Resembling the god Janus, having two faces looking in opposite directions. • JANIFORM adj. like the Roman god Janus; two-faced, hypocritical. |
| JARLDOMS | • jarldoms n. Plural of jarldom. • JARLDOM n. the domain of a jarl. |
| JEROBOAM | • jeroboam n. Alternative letter-case form of Jeroboam: a very large wine bottle. • Jeroboam prop.n. First king of the Kingdom of Israel. • Jeroboam n. A bottle of champagne or Burgundy wine containing 3 liters of fluid, four times the volume of a standard bottle. |
| JUMPROPE | • jump␣rope n. (Uncountable) (also jump-roping, jumping rope) The activity, game or exercise in which a person must… • jump␣rope n. The length of rope, sometimes with handles, casing or other additions, used in that activity. • jump␣rope n. (Colloquial) A single jump in this game or activity, counted as a measure of achievement. |
| MAJORATS | • majorats n. Plural of majorat. • MAJORAT n. (French) primogeniture, the circumstance of being firstborn. |
| MAJORING | • majoring v. Present participle of major. • MAJOR v. to pursue a specific principal course of study. |
| MAJORITY | • majority n. More than half (50%) of some group. • majority n. The difference between the winning vote and the rest of the votes. • majority n. (Dated) Legal adulthood, age of majority. |
| MARJORAM | • marjoram n. A herb of the mint family, Origanum majorana, having aromatic leaves. • marjoram n. The leaves of this plant used in flavouring food. • Marjoram prop.n. A surname. |
| MICROJET | • microjet n. A microscopic jet (of fluid). • MICROJET n. a light jet aircraft. |
| MOJARRAS | • mojarras n. Plural of mojarra. • MOJARRA n. (Spanish) any of various small percoid fishes of the family Gerreidae. |
| NONMAJOR | • nonmajor n. (US) A student who is not a major (specialist in one area). • NONMAJOR n. a student who is not majoring in a specific subject. |
| OVERJUMP | • overjump v. (Transitive) To jump over. • overjump v. (Transitive, obsolete) To omit or ignore. • overjump v. (Intransitive) To jump too far or too high. |