Englishfor English speakers
precise
Adjective
—
If something is precise it is correct and exact.
Young children are often unable to give a precise definition for words they know very well.
The precise nature of the tax changes has not been decided.
—
If someone is precise they always act and speak very carefully.
estimate
Noun
—
An estimate is a judgement of a size, value, amount, cost, etc., which is based on incomplete information.
British Telecom will give you an estimate of the cost before doing any work.
estimate
Verb
—
If you estimate the number, size, value, amount, cost, etc. of something, you guess based on incomplete information.
It's difficult to estimate how long it will take to get to London because we don't know how bad the traffic will be.