noun
estimation
es-tih-MAY-shuhn/ˌestɪˈmeɪʃn/
A judgment of something's amount or worth.
Comparing counted beans with the jar's contents allows a rough estimation of the total.

Etymology
The noun names the act or result of appraising. Its early meanings included judgment and opinion, connecting valuation with the broader sense of an approximate assessment rather than an exact measurement.
In context
all the money that they were spending you know in my estimation three to four hundred million dollars a year in order to get new american customers is gone
More examples
- In my estimation, she is the best person for the job.
- Accurate estimation of travel time helps us avoid delays.
- The new evidence lowers our estimation of the team's chances.
Forms
estimation · estimations
estimate verb — To judge an amount or value approximately.
Similar words
- estimate
- Usually refers to a specific approximate number or cost.
- assessment
- Emphasizes evaluating quality or condition rather than calculating amounts.
- appraisal
- Often means a formal judgment of monetary value.