estimate

ot noun

1. A rough calculation or assessment of the value, size, or cost of something.
2. (construction and business) A document (or verbal notification) specifying how much a job is likely to cost.
3. An upper limitation on some positive quantity.

fe’l verb

1. To calculate roughly, often from imperfect data.
2. To judge and form an opinion of the value of, from imperfect data.