1. an approximate calculation or judgment of the value, number, quantity, or extent of something
2. a statement of the likely price that would be charged for specified work or repairs

1. to form an approximate judgment or opinion regarding the worth, amount, size, weight, etc., of; calculate roughly

Examples

• I estimate the trip will take about three hours.
• Can you estimate how much this project will cost?
• The contractor gave us an estimate for the kitchen renovation.
• Police estimate that 500 people attended the rally.
• My rough estimate is that we’ll need 20 pizzas for the party.
• The repair estimate was higher than we expected.
• It’s difficult to estimate the exact number of stars in the galaxy.