1. Initial calculations or approximations made before final figures are available, often used in financial, statistical, or scientific contexts
The preliminary estimates suggest a 3% growth in the economy this quarter.
As estimativas preliminares sugerem um crescimento de 3% na economia neste trimestre.
2. Rough or tentative assessments provided in advance of more detailed analysis
Based on preliminary estimates, the project will cost approximately $500,000.
Com base nas estimativas preliminares, o projeto custará aproximadamente $500.000.