| TRO | a variety of booklouse |
|---|---|
| TRO | someone who dwells in a cave |
| TRO | one who lives in solitude |
| TRO | type genus of the Troglodytidae |
| TRO | common American wren that nests around houses |
| TRO | small wren of coniferous forests of northern hemisphere |
| TRO | wrens |
| TRO | forest bird of warm regions of the New World having brilliant lustrous plumage and long tails |
| TRO | coextensive with the order Trogoniformes |
| TRO | trogons |
| TRO | a Russian vehicle (carriage or sled) pulled by three horses abreast |
| TRO | a modern Russian triumvirate |