| UNDERCARD | • undercard n. A list of minor or supporting contests printed on the same bill as the main event (Primarily fighting… • undercard n. The events so listed. • undercard n. (Poker) A card lower than another given card or pair. | 
| UNDERCART | • undercart n. An aircraft’s undercarriage. • UNDERCART n. (colloquial) an aircraft's landing-gear, the undercarriage. | 
| UNDERCAST | • undercast n. (Meteorology) An unbroken or nearly unbroken cloud layer below the point of observation. • undercast n. (Mining) An air-passage crossing a road in a mine by means of an airtight box or channel beneath it. • undercast v. To allocate the parts in (a play or film) to insufficiently skilled actors. | 
| UNDERCLAD | • underclad adj. Inadequately clad; not wearing enough clothes. • UNDERCLAD adj. insufficiently clothed. | 
| UNDERCLAY | • underclay n. (Geology) A stratum of clay lying beneath a coal bed. • UNDERCLAY n. a stratum of clay lying beneath a coal bed, often containing the roots of coal plants. | 
| UNDERCLUB | • underclub v. (Golf, transitive, intransitive) To take (a shot) with a golf club that provides too little distance. • UNDERCLUB v. in golf, to hit with a club that has too great loft to achieve the required distance. | 
| UNDERCOAT | • undercoat n. A layer of short hairs underneath the longer ones of an animal’s fur. • undercoat n. A coat of paint or other material applied onto a surface before that of a topcoat; a coloured primer. • undercoat n. (Obsolete) A coat for wearing indoors, under an overcoat. | 
| UNDERCOOK | • undercook v. (Transitive) To cook insufficiently. • undercook n. A subordinate cook. • UNDERCOOK v. to cook insufficiently or to a lesser extent than usual. | 
| UNDERCOOL | • undercool v. To cool insufficiently. • undercool v. (Physics) To supercool. • UNDERCOOL v. to cool insufficiently. | 
| UNDERCUTS | • undercuts n. Plural of undercut. • undercuts v. Third-person singular simple present indicative form of undercut. • UNDERCUT v. to cut under. |