| BETHUMBING | • bethumbing v. Present participle of bethumb. • BETHUMB v. to wear or soil with one's thumb. |
| COLUMBINES | • columbines n. Plural of columbine. • Columbines n. Plural of Columbine. • COLUMBINE n. a flower, aka aquilegia. |
| COLUMBITES | • columbites n. Plural of columbite. • COLUMBITE n. a mineral, niobate and tantalate of iron and manganese, aka niobite. |
| COLUMBIUMS | • columbiums n. Plural of columbium. • COLUMBIUM n. a rare element of the vanadium group, now more commonly called niobium. |
| NELUMBIUMS | • nelumbiums n. Plural of nelumbium. • NELUMBIUM n. (Tamil) a plant of the Nelumbium genus of waterlilies that includes the sacred lotus, also NELUMBO. |
| REPLUMBING | • replumbing v. Present participle of replumb. • REPLUMB v. to plumb again. |
| SUCCUMBING | • succumbing v. Present participle of succumb. • SUCCUMB v. to yield to superior force. |
| SUMBITCHES | • sumbitches n. Plural of sumbitch. • SUMBITCH n. (colloquial) sonofabitch. |
| THUMBIKINS | • thumbikins n. An instrument of torture for compressing the thumb; a thumbkin or thumbscrew. • thumbikins n. Plural of thumbikin. • THUMBIKINS n. (Scots) an instrument of torture for compressing the thumb; a thumbscrew, also THUMBKIN. |
| UMBILICALS | • umbilicals n. Plural of umbilical. • UMBILICAL n. the umbilical cord. |
| UMBILICATE | • umbilicate adj. Having a navel. • umbilicate adj. (Mycology, of a mushroom etc.) Having a small umbo in a central depression, or a depression in the center of the cap. • umbilicate adj. (Botany) Supported by a central stalk. |
| UMBILIFORM | • umbiliform adj. Shaped like an umbilicus. • UMBILIFORM adj. shaped like an umbilicus. |
| UNPLUMBING | • unplumbing v. Present participle of unplumb. • UNPLUMB v. to remove lead from. |