a rough calculation or guess (based on incomplete information) of a value, quantity, or extent of something
But I am very far from agreeing with you in your estimation of ladies in general.
This is the estimation in which you hold me!
Perhaps not the less so from feeling a doubt of my positive happiness had my fair cousin honoured me with her hand; for I have often observed that resignation is never so perfect as when the blessing denied begins to lose somewhat of its value in our estimation.
With respect to Wickham, the travellers soon found that he was not held there in much estimation; for though the chief of his concerns with the son of his patron were imperfectly understood, it was yet a well-known fact that, on his quitting Derbyshire, he had left many debts behind him, which Mr. Darcy afterwards discharged.
Elizabeth, still more affected, was earnest and solemn in her reply; and at length, by repeated assurances that Mr. Darcy was really the object of her choice, by explaining the gradual change which her estimation of him had undergone, relating her absolute certainty that his affection was not the work of a day, but had stood the test of many months' suspense, and enumerating with energy all his good qualities, she did conquer her father's incredulity, and reconcile him to the match.
There are no more uses of "estimate" identified with this meaning in the book.
Show samples from other sources
What is the estimate to repair the car?
I hope her estimate of less than $100 is good because I only have $100.