| THUNDERBIRDS | • thunderbirds n. Plural of thunderbird. • Thunderbirds n. Plural of Thunderbird. • THUNDERBIRD n. in North American Indian lore, a huge bird personifying thunder and lightning. |
| THUNDERBOLTS | • thunderbolts n. Plural of thunderbolt. • THUNDERBOLT n. a flash of lightning conceived as a bolt hurled from the heavens. |
| THUNDERBOXES | • thunderboxes n. Plural of thunderbox. • thunder-boxes n. Plural of thunder-box (alternative form of thunderboxes). • thunder␣boxes n. Plural of thunder box (alternative form of thunderboxes). |
| UNDERBEARERS | • underbearers n. Plural of underbearer. • UNDERBEARER n. (dialect) someone who helps to carry a coffin. |
| UNDERBEARING | • underbearing v. Present participle of underbear. • UNDERBEARING n. the act of underbearing. |
| UNDERBELLIES | • underbellies n. Plural of underbelly. • UNDERBELLY n. the undersurface of a body or of something suggesting a body. |
| UNDERBIDDERS | • underbidders n. Plural of underbidder. • UNDERBIDDER n. one who underbids. |
| UNDERBIDDING | • underbidding v. Present participle of underbid. • UNDERBID v. to bid lower than. |
| UNDERBLANKET | • underblanket n. A blanket placed directly on the mattress of a bed. • UNDERBLANKET n. a blanket for use under another blanket. |
| UNDERBREATHS | • underbreaths n. Plural of underbreath. • UNDERBREATH n. subdued voice; rumour. |
| UNDERBRIDGES | • underbridges n. Plural of underbridge. • UNDERBRIDGE n. a bridge carrying a road or railway. |
| UNDERBRUSHED | • underbrushed v. Simple past tense and past participle of underbrush. • UNDERBRUSH v. to clear of underbrush. |
| UNDERBRUSHES | • underbrushes n. Plural of underbrush. • UNDERBRUSH n. shrubs, small trees, and the like, in a wood or forest, growing beneath large trees. |
| UNDERBUDDING | • UNDERBUD v. to bud from beneath. |
| UNDERBUDGETS | • underbudgets v. Third-person singular simple present indicative form of underbudget. • UNDERBUDGET v. to allow too low a budget. |
| UNDERBUILDER | • underbuilder n. A subordinate or assistant builder. • UNDERBUILDER n. a subordinate or assistant builder. |
| UNDERBUSHING | • underbushing v. Present participle of underbush. • UNDERBUSH v. to clear of underbrush. |