| THUNDERSTONE | • thunderstone n. (Archaic) A thunderbolt. • thunderstone n. A stone or fossil thought to be, or be caused by, a thunderbolt striking the earth. • thunderstone n. A belemnite. |
| THUNDERSTORM | • thunderstorm n. A storm consisting of thunder and lightning produced by a cumulonimbus, usually accompanied with heavy… • THUNDERSTORM n. a storm featuring thunder. |
| UNDERSTAFFED | • understaffed adj. Having an inadequate number of workers or assistants. • UNDERSTAFFED adj. inadequately staffed. |
| UNDERSTANDED | • understanded v. (Obsolete) simple past tense and past participle of understand. • UNDERSTAND v. to grasp the meaning of. |
| UNDERSTANDER | • understander n. One who understands something. • understander n. (Circus, acrobatics) One who physically supports a formation of acrobats, as a human pyramid. • under-stander n. (Circus) One who is at the base of a formation of acrobats in a performance, as of a human pyramid. |
| UNDERSTATING | • understating v. Present participle of understate. • UNDERSTATE v. to represent as less than is the case. |
| UNDERSTEERED | • understeered v. Simple past tense and past participle of understeer. • UNDERSTEER v. to turn less sharply than the driver intends. |
| UNDERSTOCKED | • understocked v. Simple past tense and past participle of understock. • understocked adj. Insufficiently stocked. • UNDERSTOCK v. to supply insufficiently with stock. |
| UNDERSTOREYS | • understoreys n. Plural of understorey. • UNDERSTOREY n. the smaller trees and bushes forming a lower level beneath the forest canopy, also UNDERSTORY. |
| UNDERSTORIES | • understories n. Plural of understory. • UNDERSTORY n. the smaller trees and bushes forming a lower level beneath the forest canopy, also UNDERSTOREY. |
| UNDERSTRATUM | • understratum n. The layer, or stratum, of earth on which the soil rests; the subsoil. • UNDERSTRATUM n. a stratum under another stratum. |
| UNDERSTUDIED | • understudied adj. Insufficiently studied. • understudied v. Simple past tense and past participle of understudy. • UNDERSTUDY v. to act another's part or take over another's duties. |
| UNDERSTUDIES | • understudies n. Plural of understudy. • understudies v. Third-person singular simple present indicative form of understudy. • UNDERSTUDY v. to act another's part or take over another's duties. |
| WONDERSTRUCK | • wonderstruck adj. Filled or overcome with wonder. • WONDERSTRUCK adj. struck with wonder. |