estimate

noun

1. A rough calculation or assessment of the value, size, or cost of something.

   ““They know our boats will stand up to their work,” said Willison, “and that counts for a good deal. A low estimate from us doesn't mean scamped work, but just that we want to keep the yard busy over a slack time.””

2. (specifically)A rough calculation or assessment of the value, size, or cost of something.
3. An upper limitation on some positive quantity.

   “The desired norm estimate is now obtained from the identity... [referring to an earlier statement saying that a certain norm is less than or equal to a certain expression]”

verb

1. To calculate roughly, often from imperfect data.

   “I estimate that I need 400 board feet of lumber to complete a job, and then order 350 because I do not want a surplus, or perhaps order 450 because I do not want to make any subsequent orders.”

   “Higher real prices for durables are estimated to have reduced their consumption per capita by 1.09% in 1930, […]”

2. To judge and form an opinion of the value of, from imperfect data.

   “It is by the weight of silver, and not the name of the piece, that men estimate commodities and exchange them.”

   “It is always very difficult to estimate the age in which you are living.”

adj

1. (obsolete, rare)estimated