1. Rough calculations or evaluations that are close to but not exact; values given as an educated guess based on available information
The contractor provided approximate estimates for the renovation project.
O empreiteiro forneceu estimativas aproximadas para o projeto de reforma.
2. Financial or quantitative projections that are not precise but serve as reasonable guides for planning purposes
We can only work with approximate estimates until we have more detailed data.
Só podemos trabalhar com estimativas aproximadas até termos dados mais detalhados.