| ULTRABRIGHT | • ultrabright adj. Very bright. |
| HEARTBURNING | • heartburning n. Secret enmity; discountent. • heartburning n. (Medicine) Heartburn. • HEARTBURNING n. intense or rancorous jealousy or resentment. |
| STRAIGHTBRED | • straightbred adj. Produced by breeding from a single breed, variety or species. • straightbred n. Any organism produced by breeding from a single breed, variety, or species. • STRAIGHTBRED n. an animal produced by breeding a single breed, strain, or type. |
| FINGERBREADTH | • fingerbreadth n. A (usually approximate and informal) unit of measurement based upon the radial width of the human finger. • FINGERBREADTH n. the breadth of a finger. |
| HEARTBREAKING | • heartbreaking adj. That causes great grief, anguish or distress. • heartbreaking n. The breaking of a heart; great grief, anguish or distress. • heart-breaking adj. (Idiomatic) That causes extreme sorrow or grief. |
| HEARTBURNINGS | • heartburnings n. Plural of heartburning. • HEARTBURNING n. intense or rancorous jealousy or resentment. |
| OVERBREATHING | • overbreathing v. Present participle of overbreathe. • overbreathing n. Hyperventilation. • overbreathing n. Excessive breathing. |
| STRAIGHTBREDS | • straightbreds n. Plural of straightbred. • STRAIGHTBRED n. an animal produced by breeding a single breed, strain, or type. |
| SUBCHARTERING | • SUBCHARTER v. to rent a chartered vehicle. |
| TURBOCHARGING | • turbocharging v. Present participle of turbocharge. • TURBOCHARGING n. the act of fitting with a turbocharger. |
| AUTOBIOGRAPHER | • autobiographer n. One who writes his or her own life or biography. • AUTOBIOGRAPHER n. one who writes autobiographies. |
| FINGERBREADTHS | • fingerbreadths n. Plural of fingerbreadth. • FINGERBREADTH n. the breadth of a finger. |
| HALTERBREAKING | • halterbreaking v. Present participle of halterbreak. • HALTERBREAK v. to break (as a colt) to a halter. |
| OVERBREATHINGS | • overbreathings n. Plural of overbreathing. • OVERBREATHING n. hyperventilation. |
| TURBOCHARGINGS | • TURBOCHARGING n. the act of fitting with a turbocharger. |
| AUTOBIOGRAPHERS | • autobiographers n. Plural of autobiographer. • AUTOBIOGRAPHER n. one who writes autobiographies. |
| BIOSTRATIGRAPHY | • biostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils. • BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain. |
| HEARTBREAKINGLY | • heartbreakingly adv. In a heartbreaking manner. • heart-breakingly adv. In a heart-breaking manner. • HEARTBREAKING adv. causing intense sorrow or distress. |
| WEATHERBOARDING | • weatherboarding n. (Architecture) A type of wooden siding in which a house is sided with long, thin, overlapping boards. • WEATHERBOARD v. to fit such a board. |